Galatians 3:18

If the inheritance is based on the Law, it is no longer based on a promise. However God granted it to Abraham by means of a promise.

Psalm 105:6-12

You seed of Abraham his servant, you children of Jacob his chosen ones.

Psalm 105:42

He remembered his holy word to his servant Abraham.

Micah 7:18-20

Who is a God like you who pardons iniquity and passes over the transgression of the remnant of his heritage? You do not keep your anger forever, because you delight in loving-kindness (unchanging love).

Luke 1:54-55

He has helped Israel his servant that he might remember mercy.

Luke 1:72-73

He shows mercy towards our fathers and remembers his holy covenant.

Romans 4:13-16

The promise to Abraham or to his seed that he should be heir of the world was not through the law but through righteousness by faith.

Romans 8:17

If children, then heirs of God, and joint heirs with Christ. If indeed we suffer with him we may also be glorified with him.

Galatians 2:21

I do not reject the grace (totally undeserved gift) of God: for if righteousness is [gained] through the law, then Christ died for nothing.

Galatians 3:10

Those who are of the works of the Law are under a curse. For it is written, Cursed is everyone who does not abide by all things written in the book of the Law, by obeying them.

Galatians 3:12

The Law is not based on faith. He that does them will live by them.

Galatians 3:16

The promises were spoken to Abraham and to his seed. He did not say to seeds, as of many; but as of one, And to your seed, which is Christ.

Galatians 3:26

You are all sons of God through faith in Christ Jesus.

Galatians 3:29

If you are Christ's, then you are Abraham's seed, heirs according to promise.

Hebrews 6:12-15

We desire that you are not lazy, but follow those who through faith and patience inherit the promises.

Treasury of Scripture Knowledge

Summary

For if the inheritance be of the law, it is no more of promise: but God gave it to Abraham by promise.

General references

Bible References

If

Galatians 3:10
Those who are of the works of the Law are under a curse. For it is written, Cursed is everyone who does not abide by all things written in the book of the Law, by obeying them.
Galatians 2:21
I do not reject the grace (totally undeserved gift) of God: for if righteousness is [gained] through the law, then Christ died for nothing.
Romans 4:13
The promise to Abraham or to his seed that he should be heir of the world was not through the law but through righteousness by faith.
Romans 8:17
If children, then heirs of God, and joint heirs with Christ. If indeed we suffer with him we may also be glorified with him.

But

Galatians 3:16
The promises were spoken to Abraham and to his seed. He did not say to seeds, as of many; but as of one, And to your seed, which is Christ.
Psalm 105:6
You seed of Abraham his servant, you children of Jacob his chosen ones.
Micah 7:18
Who is a God like you who pardons iniquity and passes over the transgression of the remnant of his heritage? You do not keep your anger forever, because you delight in loving-kindness (unchanging love).
Luke 1:54
He has helped Israel his servant that he might remember mercy.
Hebrews 6:12
We desire that you are not lazy, but follow those who through faith and patience inherit the promises.

General references

Deuteronomy 5:3
Jehovah did not make this covenant with our fathers, but with us, all of us here alive today.