The mention of the "men of the city" by the side of Gideon's "father's household" suggests the probability of their being a remnant of the Canaanite population, and the special patrons of Baal-worship.

He feared his father's household - So it appears that his father was an idolater: but as Gideon had ten men of his own servants whom he could trust in this matter, it is probable that he had preserved the true faith, and had not bowed his knee to the image of Baal.

Then Gideon took ten men of his servants,.... Not only whom he could command, but could confide in, and whom he knew would cheerfully engage in this work, being like himself, who had not bowed the knee to Baal; and as there was much work to do, and it required dispatch, such a number was necessary; since he had not only the altar of Baal to throw down, and his grove or idol to cut down, but an altar to build, and a sacrifice to be taken and offered:

and did as the Lord had said unto him; all the above things, he set about them at once, and dispatched them all in one night; so ready and cheerful was he in obedience to the divine command:

and so it was, because he feared his father's household, and the men of the city, that he could not do it by day, that he did it by night; for both his father's family, and the inhabitants of the city of Ophrah, were all idolaters, worshippers of Baal; and this fear of them was not a fear of being reproached or punished for what he did, or of any harm coming to him for the fact, which as he might expect would be known, so the risk was the same, be it done when it would; but it was a fear of being restrained and hindered from doing it, and therefore in point of prudence, and consulting the honour of God and religion, and not his own safety, he took the time of the night to do it in.

Gideon executed this command of God with ten men of his servants during the night, no doubt the following night, because he was afraid to do it by day, on account of his family (his father's house), and the people of the town.

Then Gideon took ten men of his servants, and did as the LORD had said unto him: and so it was, because he feared his father's household, and the men of the city, that he could not do it by day, that he did it by night.

6:27 Ten men - Whom doubtless he had acquainted with his design, and the assurance of success in it, whereby they were easily induced to assist him. He feared - Not so much, lest he should suffer for it, as lest he should be prevented from doing it.

6:25-32 See the power of God's grace, that he could raise up a reformer; and the kindness of his grace, that he would raise up a deliverer, out of the family of a leader in idolatry. Gideon must not think it enough not to worship at that altar; he must throw it down, and offer sacrifice on another. It was needful he should make peace with God, before he made war on Midian. Till sin be pardoned through the great Sacrifice, no good is to be expected. God, who has all hearts in his hands, influenced Joash to appear for his son against the advocates for Baal, though he had joined formerly in the worship of Baal. Let us do our duty, and trust God with our safety. Here is a challenge to Baal, to do either good or evil; the result convinced his worshippers of their folly, in praying to one to help them that could not avenge himself.