en_tn_condensed/mat/05/33.md

Again, you have heard

"Also, you have heard" or "Here is another example. You have heard"

it was said to those in ancient times

See how you translated this in Matthew 5:21.

Do not swear a false oath, but carry out your oaths to the Lord.

"Do not swear that you will do something and then not do it. Instead do whatever you have sworn to the Lord that you will do"