Verse 22. - Every one, with his servant. The material condition of the people had much improved since the return under Zerubbabel. Then there was only one slave to every six Israelites (Ezra 2:64, 65); now every Israelite had his slave, and many no doubt a large number. Lodge within Jerusalem. i.e. "sleep" or "pass the night" there, instead of returning to their several villages or towns. That in the night they may be a guard to us. The very fact that they were in Jerusalem, and known to be there, would tend to prevent an attack; and if the enemy assaulted by night, they would be at hand, and able to take their part in guarding the work.

4:16-23 We must watch always against spiritual enemies, and not expect that our warfare will be over till our work is ended. The word of God is the sword of the Spirit, which we ought to have always at hand, and never to have to seek for it, either in our labours, or in our conflicts, as Christians. Every true Christian is both a labourer and a soldier, working with one hand, and fighting with the other. Good work is likely to go on with success, when those who labour in it, make a business of it. And Satan fears to assault the watchful Christian; or, if attacked, the Lord fights for him. Thus must we wait to the close of life, never putting off our armour till our work and warfare are ended; then we shall be welcomed to the rest and joy of our Lord.Likewise at the same time said I unto the people,.... That were at work upon the wall:

let everyone with his servant lodge within Jerusalem; every builder had a servant, or a lad, as the word signifies, to wait upon him, to bring mortar or stone, or what he wanted; and some of these builders, with their lads, came out of the country towns and villages in the morning, and returned at night; now Nehemiah proposed, for the safety of the city and its walls, that for the present they would lodge in Jerusalem:

that in the night they may be a guard unto us, and labour on the day; might help to protect them in the night, should they be surprised with the enemy, and be ready for their work in the daytime.