Verses with the word precept in the New Testament (2 verses):

Mark 10:5
And Jesus answered and said unto them, For the hardness of your heart he wrote you this precept.

Hebrews 9:19
For when Moses had spoken every precept to all the people according to the law, he took the blood of calves and of goats, with water, and scarlet wool, and hyssop, and sprinkled both the book, and all the people,