Romans 2:18

and know the supreme will, and can test things that differ--being a man who receives instruction from the Law--

Philippians 1:10

so that you may be men of transparent character, and may be blameless, in preparation for the day of Christ,

Luke 12:47

And that servant who has been told his Master's will and yet made no preparation and did not obey His will, will receive many lashes.

John 13:17

If you know all this, blessed are you if you act accordingly.

Romans 15:4

For all that was written of old has been written for our instruction, so that we may always have hope through the power of endurance and the encouragement which the Scriptures afford.

1 Corinthians 8:1-2

Now as to things which have been sacrificed to idols. This is a subject which we already understand--because we all have knowledge of it. Knowledge, however, tends to make people conceited; it is love that builds us up.

1 Thessalonians 5:21

but test all such, and retain hold of the good.

2 Timothy 3:15-17

and that from infancy you have known the sacred writings which are able to make you wise to obtain salvation through faith in Christ Jesus.

Hebrews 5:14

Such persons are mere babes. But solid food is for adults--that is, for those who through constant practice have their spiritual faculties carefully trained to distinguish good from evil.

James 4:17

If, however, a man knows what it is right to do and yet does not do it, he commits a sin.

Treasury of Scripture Knowledge

Summary

And knowest his will, and approvest the things that are more excellent, being instructed out of the law;

Approvest the things that are more excellent

Being instructed

Bible References

Knowest

Luke 12:47
And that servant who has been told his Master's will and yet made no preparation and did not obey His will, will receive many lashes.
John 13:17
If you know all this, blessed are you if you act accordingly.
1 Corinthians 8:1
Now as to things which have been sacrificed to idols. This is a subject which we already understand--because we all have knowledge of it. Knowledge, however, tends to make people conceited; it is love that builds us up.
James 4:17
If, however, a man knows what it is right to do and yet does not do it, he commits a sin.

Approvest the things that are more excellent

Philippians 1:10
so that you may be men of transparent character, and may be blameless, in preparation for the day of Christ,
Hebrews 5:14
Such persons are mere babes. But solid food is for adults--that is, for those who through constant practice have their spiritual faculties carefully trained to distinguish good from evil.

Being instructed

Romans 15:4
For all that was written of old has been written for our instruction, so that we may always have hope through the power of endurance and the encouragement which the Scriptures afford.
2 Timothy 3:15
and that from infancy you have known the sacred writings which are able to make you wise to obtain salvation through faith in Christ Jesus.