Acts 7:30

when forty years were expired, there appeared to him in the wilderness of mount Sina, an angel of the Lord in a flaming bush.

Acts 7:38

'twas he that was in the assembly with our fathers in the wilderness, and with the angel that spoke to him on mount Sina: and delivered the oracles to him by word of mouth for our use.

Galatians 4:24

these things have an allegorical meaning: the two women signify the two covenants, the one from mount Sinai, which is represented by Agar, whose children were born in a state of servitude.

Treasury of Scripture Knowledge

Summary

For they were departed from Rephidim, and were come to the desert of Sinai, and had pitched in the wilderness; and there Israel camped before the mount.

Bible References

Camped

Acts 7:30
when forty years were expired, there appeared to him in the wilderness of mount Sina, an angel of the Lord in a flaming bush.
Galatians 4:24
these things have an allegorical meaning: the two women signify the two covenants, the one from mount Sinai, which is represented by Agar, whose children were born in a state of servitude.