God is surely love (1 Jn. 4:8, 16) and His love is surely great (e.g., Lam. 3:22-23), and God loves the world (Jn. 3:16) and does not want anyone to be lost (2 Pet. 3:9); But by definition, unless language really does not mean anything, the statement: “God’s love is unconditional” means that God loves without any conditions whatsoever. Many, no doubt well-intentioned people say that God loves everyone without any conditions whatsoever. But is this really what the Bible is saying? To begin, see the parable of the Great Banquet in Lk. 14:15-24 that shows that God’s love is very much conditional. It speaks of the Great Banquet which God is preparing and has invited many guests to. At the end of the parable those who were first invited chose not to attend. The parable ends with the statement: “For I say to you  that no one of those men that were invited [and chose not to attend] will taste of my dinner.” This shows that God’s love is conditional upon choosing to follow and obey Him. Ultimately, those who reject God, are rejecting His love and will be rejected by Him and they will be destroyed in the Lake of Fire.

    Next, for those who at some point decide to follow and obey God (now only through Yeshua Jesus), God’s love will be conditioned upon continued obedience. Not that at one point God loves you and then He doesn’t and then He does and then He doesn’t, but it is possible to slip away from God’s love. In John 14:15 Yeshua Jesus says: “If you love Me, My commands/commandments you will keep/be keeping.” The Greek word that is translated “if” is by definition a conditional term and many Greek lexicons reflect this saying this term is a “marker of condition” or a “conditional particle”, etc. In short this Scripture means that those who are truly loving God will be keeping God’s [here God’ commandments given through Yeshua Jesus] commandments. The direct implication of this is that those who are not keeping God’s commands/commandments are not loving God and this is equivalent to, and obviously, breaking the greatest commandment. We see here that mankind’s “love” for God is only acceptable to God if mankind is actually following God’s commands/commandments. This means that mankind’s love being accepted by God as being true covenant love is conditional and that it is based upon the condition that one is keeping God’s commands/commandments. This is one way that man’s love is conditional; but the issue at hand is over whether God’s love to mankind is conditional or not. This is clearly answered by Yeshua Jesus in His statement in John 15:10: “If you keep My commands/commandments you will remain/be remaining in My love.” This is clearly a conditional statement and it is clearly showing that remaining in God’s love is conditioned upon one keeping His commands/commandments. And this means that those who are not living a life of keeping God’s commands/commandments are not only not loving God in an acceptable manner to Him (John 14:15), but that they are also not remaining in God’s love (John 15:10), and those who are not in God’s love when they are called home or when Yeshua Jesus returns will be lost.
    For further Scriptural confirmation of these things see Rev. 3:9! We can see more about these things in the letters to the Churches in Revelation. Taking just a little from these letters, notice that in Rev. 2:4 Yeshua Jesus tells the Church in Ephesus (NKJV): “…I hold this against you: You have forsaken your first love. Remember the height from which you have fallen! Repent and do the things you did [as opposed to merely having belief/trust] at first. If you do not repent, I will come to you and remove your lamp-stand from its place…He who has an ear, let him hear what the Spirit says to the churches. To him who overcomes [as opposed to merely believing/trusting], I will give the right to eat from the tree of life…” And to the Church of Laodicea He tells them (Rev. 3:15-20, NKJV): “I know your deeds [as opposed to mere “belief/trust”], that you are neither cold nor hot. I wish you were either one or the other! So, because you are lukewarm–neither hot nor cold–I am about to spit [lit. in the Greek “vomit”] you out of my mouth…repent. Here I am! I stand at the door and knock. If anyone hears my voice and opens the door, I will come in and eat with him, and he with me…” Here the Church as a whole (which would mean most if not all of its members) is pictured as having left the love of Christ with Christ being outside of their hearts (they walked away from Him) and knocking on their door.
    And there are other conditions placed upon God’s love for mankind. One of these is found in Mt. 6:15 which says (NKJV): “For if you forgive men when they sin against you, your heavenly Father will also forgive you. But if you do not forgive men their sins, your Father will not forgive your sins.” And there is also the warning and danger of sinning against the Holy Spirit in such a way as not to be able to attain forgiveness of this sin and this is the sin of attributing the things of the Ruach HaKodesh (the Holy Spirit) to the things of satan (Mt. 12:31-32; Mk. 3:28-30; Lk. 12:10)! (One must be careful to investigate thoroughly and not be too quick about condemning what may be the workings of the Holy Spirit today, as at least sometimes they truly are!  Yet, as the verses just listed also show, with the exception of the previous sin, it is possible for all other sins to be forgiven! This means that those coming to God to be saved need not worry that they will not be forgiven! At the same one should be warned that this does not mean that willful sins of the saved are necessarily easily forgiven. (Consider Lev. 7:18; consider also Mt. 18:21-35 where prior forgiven sins will be un-forgiven! Note carefully v. 35!) I have certainly heard of God allowing those previously saved who later were willfully sinning to become trapped in their sins! And not everyone escapes! (See Mt. 12:43-45!) And Yeshua Jesus Himself warns about these things in His parable of the sower! See Mt. 13:7, 22; Mk. 4:18-19; Lk. 8:7, 14; 2 Pet. 2:17-22. And another point, if God’s love was truly unconditional, no one would be separated from Him and lost! But the Scriptures teach that many, actually most (Mt. 7:14; Lk. 13:24!), will be lost and they certainly will not feel God’s love in the punishment side of Hades or in the Lake of Fire! And God has known this from the very beginning! Think about it! He allowed satan to tempt Eve and Adam and surely also knew that they would fall! He will also allow satan to be released on the Earth at the end of the Millennium to draw away souls from Him (Rev. 20:1-10)! See also Lev. 26:14-46 where YHWH (Jehovah God) says that He would temporarily abhor and break covenant with those who refuse to follow Him. All of those who died under these conditions certainly can attest to the fact that God’s love is conditional as these verses prove (see esp. v. 30) and warn against! Warning! Don’t be caught on this side of God! And when it comes down to it, in the end, either one will be committed to being on God’s side and walking in this committment, or they will be seen as being on the side of His enemy! (Cf. Rom. 5:10; 2 Thess. 1:8Jms. 4:4.) Some very important texts from the OC Scriptures concerning all these things (including unstated implications in these texts) include: Exod. 20:4-6; 34:6-7; Num. 16Deut. 5:8-107:7-16. Remember, the God of the OC (YHWH (Jehovah God) ) is also the God of NC and Christianity!
   See also Mt. 7:21-23 where Yeshua Jesus is recorded to have said: “Not everyone saying to Me, ‘Lord/Master/Owner/Ruler will enter into the Kingdom of the Heavens, but/but_rather the one doing/producing/working the will of My Father in the Heavens. Many will say to Me in that Day: ‘Lord/Master did we not prophesy in Your Name? And in Your Name cast out demons? And in Your Name do/produce/work many miracles/mighty deeds?’ And then I will confess to them that: ‘I have never known you — This is not literal, it is a Hebrew idiom of rejection. See Job 8:18! This is key in understanding this verse correctly.]–be departing from Me you workers of lawlessness/lawless_deeds/illegal deeds.“! This Hebraic idiom of rejection shows that God’s love is not unconditional! Consider also Lk. 14:15-2417:1-2; Jn. 14:21, 23! See also Rom. 9:25. And Lk. 19:11-28 is more evidence against the theory that God’s love is unconditional!
    We followers of YHWH (Jehovah God) and Yeshua Jesus do serve an awesome and mighty God whose nature is surely love (1 Jn 4:8, 16),  and who “…is the faithful God, keeping his covenant of love to a thousand generations of those who love him and keep his commands.” (Deut. 7:9; see also Ex. 20:6; this means: to those who are keeping covenant with Him! And this means that it is conditional! This is also clear in Deut. 7:12-13) And almost every (at least unintentional) sin can be forgiven (Mt. 12:31-32; Mk. 3:28-29). And for those who are on the path and truly trying God is very forgiving (1 Jn. 1:7-10; cf. Mt. 18:21-35). And God does have a general love toward all mankind as a whole (Jn. 3:16) and does not want to lose anyone (2 Pet. 3:9). But God is absolutely and resolutely against sin! His followers must be truly fighting against it if they desire to be saved. There will be a judgment for everyone (See the above myth “Christians will not face a judgment”) and there will be a test to pass and the “lukewarm” should not expect to be saved (Rev. 3:15-16; cf. Mt. 25:1-13), for they are certainly not keeping the greatest commandment; and all those walking away from following God are walking away from His covenant love (Jn 15:9; Rev. 2:4) and away from salvation.