Exodus 31:16

So the Israelites shall observe the Sabbath, to celebrate the Sabbath throughout their generations as a perpetual covenant.’

Genesis 9:13

I set My rainbow in the clouds, and it shall be a sign of a covenant between Me and the earth.

Genesis 17:11

And you shall be circumcised in the flesh of your foreskins, and it shall be the sign (symbol, memorial) of the covenant between Me and you.

Jeremiah 50:5

They will ask the way to Zion, with their faces in that direction, saying, ‘Come, let us join ourselves to the Lord in an everlasting covenant that will not be forgotten.’

Treasury of Scripture Knowledge

Summary

Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.

General references

Bible References

A perpetual covenant

Genesis 9:13
I set My rainbow in the clouds, and it shall be a sign of a covenant between Me and the earth.
Genesis 17:11
And you shall be circumcised in the flesh of your foreskins, and it shall be the sign (symbol, memorial) of the covenant between Me and you.
Jeremiah 50:5
They will ask the way to Zion, with their faces in that direction, saying, ‘Come, let us join ourselves to the Lord in an everlasting covenant that will not be forgotten.’

General references

Ezekiel 20:20
Sanctify My Sabbaths and keep them holy; and they shall be a sign between Me and you, that you may know [without any doubt] that I am the Lord your God.’