Exodus 20:6

20:6 and showing covenant faithfulness to a thousand generations of those who love me and keep my commandments.

Exodus 30:31

30:31 And you are to tell the Israelites: ‘This is to be my sacred anointing oil throughout your generations.

Exodus 31:16

31:16 The Israelites must keep the Sabbath by observing the Sabbath throughout their generations as a perpetual covenant.