15 So the wall was finished on the twenty-fifth of Elul, in fifty-two days. 16 And it came to pass that when all our enemies heard [of it], all the nations that were about us were afraid and were much cast down in their own eyes, and they perceived that this work was wrought by our God. 17 Moreover in those days the nobles of Judah sent many letters to Tobijah, and those of Tobijah came to them. 18 For there were many in Judah sworn to him; for he was a son-in-law of Shechaniah the son of Arah; and his son Johanan had taken the daughter of Meshullam the son of Berechiah. 19 Also they spoke of his good deeds before me, and reported my words to him. [And] Tobijah sent letters to put me in fear.

Matthew Henry's Commentary on Nehemiah 6:15-19

Commentary on Nehemiah 6:15-19

(Read Nehemiah 6:15-19)

The wall was begun and finished in fifty-two days, though they rested on the sabbaths. A great deal of work may be done in a little time, if we set about it in earnest, and keep close to it. See the mischief of marrying with strangers. When men once became akin to Tobiah, they soon became sworn to him. A sinful love leads to a sinful league. The enemy of souls employs many instruments, and forms many projects, to bring reproach on the active servants of God, or to take them from their work. But we should follow the example of Him who laid down his life for the sheep. Those that simply cleave to the Lord and his work will be supported.