Where did you get this definition? I've never even heard this
"And with great power the apostles gave witness to the resurrection of the Lord Jesus. And great grace was upon them all.” (Acts 4:33)
Grace is a utility for God's witnesses.
“… but grow in the grace and knowledge of our Lord and Savior Jesus Christ.” (2 Peter 3:18)
Grace can be grown.
“You therefore, my son, be strong in the grace that is in Christ Jesus.” (2 Timothy 2:1)
Grace is a strength.
“And God is able to make all grace abound toward you, that you, always having all sufficiency in all things, have an abundance for every good work.” (2 Corinthians 9:8)
Grace is a resource for doing good works.
“I thank my God always concerning you for the grace of God which was given to you by Christ Jesus, that you were enriched in everything by Him in all utterance and all knowledge, even as the testimony of Christ was confirmed in you, so that you come short in no gift, eagerly waiting for the revelation of our Lord Jesus Christ, who will also confirm you to the end, that you may be blameless in the day of our Lord Jesus Christ.” (1 Corinthians 1:4-8)
Gifts of God come from God's grace.
“But to each one of us grace was given according to the measure of Christ’s gift.” (Ephesians 4:7)
Grace is Christ's gift.
“Having then gifts differing according to the grace that is given to us, let us use them: if prophecy, let us prophesy in proportion to our faith …” (Romans 12:6)
Grace is to be actively used.
As God's co-workers we urge you not to receive God's grace in vain. (2 Corinthians 6:1)
This is why Grace can be received in vain (i.e. not used).
“As each one has received a gift, minister it to one another, as good stewards of the manifold grace of God.” (1 Peter 4:10)
Grace is many-fold.
And the most pronounced passage that defines grace for me is...
8 Concerning this thing I pleaded with the Lord three times that it might depart from me. 9 And He said to me, “My grace is sufficient for you, for My strength is made perfect in weakness.” Therefore most gladly I will rather boast in my infirmities, that the power of Christ may rest upon me. 10 Therefore I take pleasure in infirmities, in reproaches, in needs, in persecutions, in distresses, for Christ’s sake. For when I am weak, then I am strong.
(2 Corinthians 12:8-10)
Grace is God's strength.
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So Grace is the divine power of God that Christ had in full during his ministry, which is offered to anyone who will choose to *use* it now to live righteously, soberly, to say "no" to sin and to witness for God.