This may seem like an odd topic for me to handle but I have had this rolling around in me for a long time.
I'm sure many of us recall the oft repeated quote from JWs that "faith without works is dead" The concept of grace is unknown to them. So what is it?
One website gives one aspect of it as
Grace is a beautiful word, truly a great Bible truth is resident in this word. In fact, it is a word and concept without which man's salvation would be impossible. Grace is derived from the Greek charis. Thayer comments thus on charis: "…the New Testament writers used charis pre-eminently of that kindness by which God bestows favors even upon the ill-deserving, and grants to sinners the pardon of their offences, and bids them accept of eternal salvation through Christ…" (Greek-English Lexicon, pg. 666)....
Grace versus merit. The scriptures reveal that not only are grace and merit not coexistent, they are mutually excluding. Salvation cannot simultaneously be by grace and works (merit), Paul argues (Rom. 11: 6). If man could merit his salvation, God's grace would not be requisite (Rom. 4: 1 ff., Eph. 2: 8-18). However, the Bible truth that grace and merit are incompatible does not mean man is passive in the matter of enjoying God's grace (the scriptures, as seen, do not teach universal salvation - such would inevitably be the case if man were passive and God active because God is not willing that any perish, 2 Pet. 3: 9). "For by grace are ye saved through faith," explained Paul, "and that not of yourselves: it is a gift of God…" (Eph. 2: 8). Grace is God's part, faith is man's responsibility. However, faith or belief itself is a work (Jn. 6: 29). Faith is not meritorious but a "work of God." Faith, saving faith, is always active and obedient (Jas. 2: 19-26).
"Grace is... kindness by which God bestows favors even upon the ill-deserving"
So Grace is the kindness shown even when it is not deserved. That sounds unconditional to me. I'm a parent. I've had my kids scream and yell that they hate me. Teens. I think they all do it. The more you enforce the rules the more they scream. And even when we were angry with each other that didn't mean I stopped loving them or caring for them. I still washed their clothes and made their meals. I still did all those mother things regardless of the anger.
Regardless of what choices my daughters have made in their lives I still love them and if they asked I would be there. I haven't always approved or liked their choices but the love addresses who they are as people not what they do.
Salvation cannot simultaneously be by grace and works (merit). This whole idea of unconditional love and acceptance of a person is foreign to the WTS and JWs. They assert that it is only by works (meetings, service, prayer, and following hundreds of doctrinal changes at the drop of a hat). For them it is about what others see you do that makes you approved by God. It just goes so against what the concept of God's Grace is.
Now if we as humans can love our children unconditionally then why on earth wouldn't a God who has the qualities of love, justice, power, and wisdom be incapable of doing the same? In fact there is no way we could believe that He would do less than provide uncondional grace to those who are undeserving.