Even the second bullock: thus there was but one bullock, which was young, to wit, comparatively, but not simply, for it was seven years old; and of such this Hebrew word is used, Job_21:10; for these creatures are fruitful above seven years. Or thus,
thy father’s young bullock, and the second bullock: so there were two bullocks. But because there is but one of them mentioned both in the next verse, and in the execution of this command, Jud_6:28, it is probable it was but one; and the Hebrew particle vau, and, is put exegetically for even, or, to wit, as is very usual. And this he calls his father’s young bullock, both because his father was the owner of it, and because his father kept and fed it for a sacrifice to Baal. But because it is likely his father kept divers of these cattle of differing ages and statures for that use, either at his own or at the people’s charge, therefore he adds, by way of limitation, that he should not take the eldest and the greatest, but the second, to wit, in age, or stature, or goodliness, or in the order of sacrifice, that which was to have been sacrificed to Baal in the second place. And this he singled out because of its age; for being
seven years old, it began with the Midianitish calamity, and being now to be sacrificed, did fitly signify, that the period of that misery was now come.
That thy father hath; which thy father built in his own ground, though for the common use of the whole city, Jud_6:28-30.
The grove that is by it; planted by the altar for idolatrous or impure uses, as the manner of idolaters was. See Jud_3:7. This action might seem injurious to his father’s rights and authority; but God’s command was sufficient warrant, and Gideon was now called to be the supreme magistrate, whereby he was made his father’s superior, and was empowered, and authorized, and enjoined to root out all idolatry and superstition, and the instruments thereof.