Numbers Chapter 32, Verse 20

20: And Moses said unto them, If ye will do this thing, if ye will go armed before the LORD to war,- edit KJV text
20: And Moses said to them: If you do what you promise, go on well appointed for war before the Lord:— edit Douay text
20: And Moses said to them, If ye will do according to these words, if ye will arm yourselves before the Lord for battle,— edit LXX text