And they sent messengers to the inhabitants of Kirjathjearim, saying, The Philistines have brought again the ark of the LORD; come ye down, and fetch it up to you.

Wesley's Notes

6:21 Kirjath - jearim - Whither they sent, either because the place was not far off from them, and so it might soon be removed: or because it was a place of eminency and strength, and somewhat farther distant from the Philistines, where therefore it was likely to be better preserved from any new attempts of the Philistines, and to be better attended by the Israelites, who would more freely and frequently come to it at such a place, than in Beth - shemesh, which was upon the border of their enemies land.

Jamieson-Fausset-Brown Bible Commentary

21. Kirjath-jearim-"the city of woods," also called Kirjath-baal (Jos 15:60; 18:14; 1Ch 13:6, 7). This was the nearest town to Beth-shemesh; and being a place of strength, it was a more fitting place for the residence of the ark. Beth-shemesh being in a low plain, and Kirjath-jearim on a hill, explains the message, "Come ye down, and fetch it up to you."

Matthew Henry's Concise Commentary

6:19-21 It is a great affront to God, for vain men to pry into, and meddle with the secret things which belong not to them, De 29:29; Col 2:18. Man was ruined by desiring forbidden knowledge. God will not suffer his ark to be profaned. Be not deceived, God is not mocked. Those that will not fear his goodness, and reverently use the tokens of his grace, shall be made to feel his justice. The number smitten is expressed in an unusual manner in the original, and it is probable that it means 1170. They desire to be rid of the ark. Foolish men run from one extreme to the other. They should rather have asked, How may we have peace with God, and recover his favor? Mic 6:6,7. Thus, when the word of God works with terror on sinners' consciences, they, instead of taking the blame and shame to themselves, quarrel with the word, and put that from them. Many stifle their convictions, and put salvation away from them.