John Wesley on 1 Samuel 6:20

Who is able, &c. - That is, to minister before the ark where the Lord is present. Since God is so severe to mark what is amiss in his servants, who is sufficient to serve him? It seems to be a complaint, or expostulation with God, concerning this great instance of his severity. And to whom, &c. - Who will dare to receive the ark with so much hazard to themselves. Thus when the word of God works with terror on men's consciences, instead of taking the blame to themselves, they frequently quarrel with the word, and endeavour to put it from them.