Salvation is by Grace, but it wasn't by Grace.

 Blood price has been paid!

He delivered us from the power of darkness and transferred us into the kingdom of his dear Son, in whom we have redemption through his blood, that is, the forgiveness of sins.

Colossians 1:13-14

In whom we have redemption through his blood, the forgiveness of sins, according to the riches of his grace. Ephesians 1:7

Knowing that it was not with corruptible things, such as silver or gold, that you were redeemed from your vain way of life, which you received by tradition from your fathers, but with the precious blood of Christ, as of an immaculate and undefiled lamb.

1 Peter 1:18-19

But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus Christ his Son cleanses us from all sin.

1 John 1:7

Now may the God of peace, who through the blood of the everlasting covenant brought back from the dead our Lord Jesus Christ, the great Shepherd of the sheep, equip you with every good work to do his will, working in you that which is before him. it is pleasing through Christ Jesus, to whom be glory forever and ever. Amen!

Hebrews 13:20-21

But now, in Christ Jesus, you who once were far off have been brought near by the blood of Christ.

Ephesians 2:13

Whoever eats my flesh and drinks my blood abides in me, and I in him.

John 6:56

how much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, cleanse your conscience from dead works to serve the living God? Hebrews 9:14

Come then, and let us reason together, saith the Lord; though your sins are like scarlet, they shall be as white as snow; though they are red like crimson, they shall become like wool.

Isaiah 1:18

In like manner he took the cup after supper, saying, This cup is the New Testament in my blood, which is shed for you. Luke 22:20