Titus 2:11 For the grace of God that bringeth salvation hath appeared to all men.
What is Grace? Grace is commonly known as unmerited ( undeserving and unconditional) favour bestowed upon us by God. Furthermore as revealed in the bible.
Grace is a living person, the fullness of God Himself who is embodied in Jesus christ and who pass through incarnation, living human, crucifixion, and resurrection to become the live giving spirit, that He might dwell in us to be our life and our everything for our benefit.
However grace can't be bought, it is not genetic, it can't be earned by any amount of human effort (works). It is only but free gift from God through our union with Christ. God's grace is first to save a sinner, train and sustain a Christian for effective kindom work already prepared in Christ to work in them.
May the Lord usher us into the full manifestation of his grace in Jesus name. Amen.