John 1:17

For the law was given through Moses; [but] God's favor and truth came through Jesus Christ.

Romans 5:20-21

Now the law of Moses was introduced [into the world] in order to cause sin to increase [i.e., it defined many things to be wrong that were previously not regarded as sin]. But with the increase of sin, God's unearned favor increased all the more.

Romans 15:8-9

For I tell you that Christ was [appointed] to be a servant of the circumcised ones [i.e., the Jews], in order to uphold the truth of God. This was so He could confirm [as valid] the promises made to our forefathers,

Ephesians 1:7

In [fellowship with] Christ we have redemption [i.e., we have been bought back from Satan] through His blood, and have forgiveness of sins according to the abundance of God's unearned favor,

Ephesians 2:4-7

But God, who has great love for us and abundant mercy [toward us],

Treasury of Scripture Knowledge

Summary

But thou, O Lord, art a God full of compassion, and gracious, longsuffering, and plenteous in mercy and truth.

Bible References

But thou

Romans 5:20
Now the law of Moses was introduced [into the world] in order to cause sin to increase [i.e., it defined many things to be wrong that were previously not regarded as sin]. But with the increase of sin, God's unearned favor increased all the more.
Ephesians 1:7
In [fellowship with] Christ we have redemption [i.e., we have been bought back from Satan] through His blood, and have forgiveness of sins according to the abundance of God's unearned favor,
Ephesians 2:4
But God, who has great love for us and abundant mercy [toward us],