16 It happened from that time forth, that half of my servants worked in the work, and half of them held the spears, the shields, and the bows, and the coats of mail; and the rulers were behind all the house of Judah. 17 They all built the wall and those who bore burdens loaded themselves; everyone with one of his hands worked in the work, and with the other held his weapon; 18 and the builders, everyone had his sword girded by his side, and so built. He who sounded the trumpet was by me. 19 I said to the nobles, and to the rulers and to the rest of the people, The work is great and large, and we are separated on the wall, one far from another: 20 in whatever place you hear the sound of the trumpet, rally there to us; our God will fight for us. 21 So we worked in the work: and half of them held the spears from the rising of the morning until the stars appeared. 22 Likewise at the same time said I to the people, Let everyone with his servant lodge within Jerusalem, that in the night they may be a guard to us, and may labor in the day. 23 So neither I, nor my brothers, nor my servants, nor the men of the guard who followed me, none of us put off our clothes, everyone went with his weapon to the water.

Matthew Henry's Commentary on Nehemiah 4:16-23

Commentary on Nehemiah 4:16-23

(Read Nehemiah 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.