John Gill Commentary 2 Chronicles 14:7

"For he said unto Judah, Let us build these cities, and make about them walls, and towers, gates, and bars; the land is yet before us, because we have sought Jehovah our God; we have sought him, and he hath given us rest on every side. So they built and prospered." — 2 Chronicles 14:7 (ASV)

Therefore he said unto Judah To the nobles and principal men of the kingdom:

let us build these cities ; which he, no doubt, particularly mentioned by name, and pointed at; that is, repair and fortify them, and put them into a better condition of defence:

and make about them walls and towers, gates and bars ; which are always made to fortified places, to protect the inhabitants, and keep out an enemy:

while the land is yet before us ; in our power, no enemy in it, nor any to hinder or molest:

because we have sought the Lord our God, we have sought him, and he has given us rest on every side ; had set up his pure worship, reformed abuses in it, and removed idolatry from it, and closely attended to the service of the sanctuary, which was well pleasing to God; the happy effect of which they experienced, rest from all their enemies round about them:

so that they built, and prospered ; they began, and went on, and finished, there being nothing to hinder them.