Deuteronomy 22:2

If you are not acquainted with your brother, or you just do not know him, then you should bring it home to your house. Keep it with you until your brother looks for it. Then you should give it to him.

Matthew 7:12

Do for others the same as you would have them to do for you. That is the meaning of the Law and the Prophets.

1 Thessalonians 4:6

Let no man defraud his brother in any matter. Jehovah is the avenger of this. We also have warned you and testified.

Treasury of Scripture Knowledge

Summary

And if thy brother be not nigh unto thee, or if thou know him not, then thou shalt bring it unto thine own house, and it shall be with thee until thy brother seek after it, and thou shalt restore it to him again.

Thou shalt restore

General references

Bible References

Thou shalt restore

Matthew 7:12
Do for others the same as you would have them to do for you. That is the meaning of the Law and the Prophets.
1 Thessalonians 4:6
Let no man defraud his brother in any matter. Jehovah is the avenger of this. We also have warned you and testified.

General references

Exodus 23:4
If you see your enemy's cow or donkey running loose, take it back to him.