Neither shall ye profane. In forbidding the profanation of His name, He confirms in other words the foregoing sentiment; guarding by them His worship from all corruptions, that it may be maintained in purity and integrity. The same, too, is the object of the clause in apposition, which immediately follows; for they hallow God's name who turn not away from its rightful and sincere worship. Let this be carefully observed, that whatever fancies men devise, are so many profanations of God's name; for although the superstitious may please themselves by their imaginations, yet is all their religion full of sacrilege, whereby God complains that His holiness is profaned. Mark, also, the mutual relation, when God requires Himself to be hallowed, even as he hallows the people; for nothing can be more unseemly than for the Israelites to mix up with idols Him by whose blessing they excel all other nations. It is as though He commanded them to reflect from whence their superiority proceeded, that they may pay their debt of gratitude to Him who is its author. In sum, forasmuch as He had separated them from heathen nations, He condemns all wicked blending with them, whereby the integrity of religion is corrupted, so that He may alone have the pre-eminence, and all idols may be repudiated.

Neither shall ye profane my holy name - God's name is profaned or rendered common when we treat his commands as we often do those of our fellows, when they do not appear to have self-interest to recommend them. He therefore profanes God's holy name who does not both implicitly believe and conscientiously obey all his words and all his precepts.
I will be hallowed among the children of Israel - The words children of Israel, בני ישראל beney Yishrael, which so frequently occur, should be translated either the descendants or posterity of Israel, or the people of Israel. The word children has a tendency to beget a false notion, especially in the minds of young people, and lead them to think that children, in the proper sense of the word, i. e., little ones, are meant.

Neither shall ye (k) profane my holy name; but I will be hallowed among the children of Israel: I [am] the LORD which hallow you,
(k) For whoever does otherwise than God commands pollutes his Name.

Neither shall ye profane my holy name,.... By transgressing the laws of God, particularly by offering blemished sacrifices, or before the proper tithe; or by slaying the dam and its young on one day; for, as Aben Ezra observes, this is said to the sons of Aaron:
but I will be hallowed among the children of Israel; by his priests among them, and by themselves, conforming to all the precepts, and particularly the last mentioned, which respects them, and their eating up the peace offerings the same day:
I am the Lord which hallowed you; had separated them from all other people, and had given them holy laws to walk by, through the observance of which they would be at least externally holy.

Hallowed, or sanctified, either by you in keeping my holy commands, or upon you in executing my holy and righteous judgments. I will manifest myself to be an holy God that will not bear the transgression of my laws.