Romans 3:24 Being justified freely by his grace through the redemption that is in Christ Jesus:
Romans 4:4 Now to him that worketh is the reward not reckoned of grace, but of debt.
Romans 4:16 Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,
Romans 5:2 By whom also we have access by faith into this grace wherein we stand, and rejoice in hope of the glory of God.
Romans 5:15 But not as the offence, so also is the free gift. For if through the offence of one many be dead, much more the grace of God, and the gift by grace, which is by one man, Jesus Christ, hath abounded unto many.
Romans 5:17 For if by one man’s offence death reigned by one; much more they which receive abundance of grace and of the gift of righteousness shall reign in life by one, Jesus Christ.)

Ephesians 2:8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God