Our transformation gives us much to be thankful for and even more to think about. Our very nature has been changed. When we received new life in Christ it was a life that was really, well, new. Thus, we are no longer those same old people. Here are two passages that explain what happened and is to happen still:
And you He made alive, who were dead in trespasses and sins, in which you once walked according to the course of this world, according to the prince of the power of the air, the spirit who now works in the sons of disobedience, among whom also we all once conducted ourselves in the lusts of our flesh, fulfilling the desires of the flesh and of the mind, and were by nature children of wrath, just as the others.” – Ephesians 2:1-3 (NKJV)
So that’s who we used to be. And now, what?
Behold what manner of love the Father has bestowed on us, that we should be called children of God! Therefore the world does not know us, because it did not know Him. Beloved, now we are children of God; and it has not yet been revealed what we shall be, but we know that when He is revealed, we shall be like Him, for we shall see Him as He is. And everyone who has this hope in Him purifies himself, just as He is pure.” – 1 John 3:1-3 (NKJV)