Exodus 6:26

6:26 It was the same Aaron and Moses to whom the Lord said, “Bring the Israelites out of the land of Egypt by their regiments.” ¹ 

Exodus 12:41

12:41 At the end of the 430 years, on the very day, all the regiments ²  of the Lord went out of the land of Egypt.

Exodus 12:51

12:51 And on this very day the Lord brought the Israelites out of the land of Egypt by their regiments.

[6:26]  ¹ tn Or “by their hosts” or “by their armies.” Often translated “hosts” (ASV, NASB) or “armies” (KJV), צְבָאוֹת (tsÿva’ot) is a military term that portrays the people of God in battle array. In contemporary English, “regiment” is perhaps more easily understood as a force for battle than “company” (cf. NAB, NRSV) or “division” (NIV, NCV, NLT), both of which can have commercial associations. The term also implies an orderly departure.

[12:41]  ² sn This military term is used elsewhere in Exodus (e.g., 6:26; 7:4; 12:17, 50), but here the Israelites are called “the regiments of the Lord.”