12 Remember that you were slaves in Egypt, and follow carefully these decrees.

Read Deuteronomy 16:12 Using Other Translations

And thou shalt remember that thou wast a bondman in Egypt: and thou shalt observe and do these statutes.
You shall remember that you were a slave in Egypt; and you shall be careful to observe these statutes.
Remember that you were once slaves in Egypt, so be careful to obey all these decrees.