Romans 9:15-16

9:15 For he says to Moses: “I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion.” 9:16 So then, it does not depend on human desire or exertion, but on God who shows mercy.

Romans 5:20-21

5:20 Now the law came in so that the transgression may increase, but where sin increased, grace multiplied all the more, 5:21 so that just as sin reigned in death, so also grace will reign through righteousness to eternal life through Jesus Christ our Lord.

Ephesians 1:6

1:6 to the praise of the glory of his grace that he has freely bestowed on us in his dearly loved Son.