11 And our adversaries said, They shall not know, neither see, till we come into the midst of them and kill them, and put an end to the work. 12 And it came to pass that when the Jews that dwelt by them came and told us so ten times, from all the places whence they returned to us, 13 I set in the lower places behind the wall in exposed places, I even set the people, according to their families, with their swords, their spears and their bows. 14 And I looked, and rose up, and said to the nobles, and to the rulers, and to the rest of the people, Be not afraid of them: remember the Lord who is great and terrible, and fight for your brethren, your sons and your daughters, your wives and your houses. 15 And it came to pass that when our enemies heard that it was known to us, and that God had defeated their counsel, we returned all of us to the wall, every one to his work.

16 And from that time forth the half of my servants wrought in the work, and the other half of them held the spears, and the shields, and the bows, and the corslets; and the captains were behind all the house of Judah. 17 They that built on the wall, and they that bore burdens, with those that loaded, wrought in the work with one hand, and with the other they held a weapon. 18 And the builders had every one his sword girded by his side, and built. And he that sounded the trumpet was by me.

Matthew Henry's Commentary on Nehemiah 4:11-18

Commentary on Nehemiah 4:7-15

(Read Nehemiah 4:7-15)

The hindering good work is what bad men aim at, and promise themselves success in; but good work is God's work, and it shall prosper. God has many ways of bringing to light, and so of bringing to nought, the devices and designs of his church's enemies. If our enemies cannot frighten us from duty, or deceive us into sin, they cannot hurt us. Nehemiah put himself and his cause under the Divine protection. It was the way of this good man, and should be our way. All his cares, all his griefs, all his fears, he spread before God. Before he used any means, he made his prayer to God. Having prayed, he set a watch against the enemy. If we think to secure ourselves by prayer, without watchfulness, we are slothful, and tempt God; if by watchfulness, without prayer, we are proud, and slight God: either way, we forfeit his protection. God's care of our safety, should engage and encourage us to go on with vigour in our duty. As soon as a danger is over, let us return to our work, and trust God another time.

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.