My people are destroyed for lack of knowledge - “My people are,” not, “is.” This accurately represents the Hebrew . The word “people” speaks of them as a whole; are, relates to the individuals of whom that whole is composed. Together, the words express the utter destruction of the whole, one and all. They are destroyed “for lack of knowledge,” literally, “of the knowledge,” i. e., the only knowledge, which in the creature is real knowledge, that knowledge, of the want of which he had before complained, the knowledge of the Creator. So Isaiah mourns in the same words , “therefore my people are gone into captivity, because they have no knowledge” Isaiah 6:13. They are destroyed for lack of it, for the true knowledge of God is the life of the soul, true life, eternal life, as our Saviour saith, “This is life eternal, that they should know Thee, the only true God, and Jesus Christ whom Thou has sent.” The source of this lack of knowledge, so fatal to the people, was the willful rejection of that knowledge by the priest;
Because thou hast rejected knowledge, I will also reject thee, that thou shalt be no priest to Me - God marks the relation between the sin and the punishment, by retorting on them, as it were, their own acts; and that with great emphasis, “I will utterly reject thee . Those, thus addressed, must have been true priests, scattered up and down in Israel, who, in an irregular way, offered sacrifices for them, and connived at their sins. For God’s sentence on them is, “thou shalt be no priest to me.” But the priests whom Jeroboam consecrated out of other tribes than Levi, were priests not to God, but to the calves. Those then, originally true priests to God, had probably a precarious livelihood, when the true worship of God was deformed by the mixture of the calf-worship, and the people “halted between two opinions;” and so were tempted by poverty also, to withhold from the people unpalatable truth. They shared, then, in the rejection of God’s truth which they dissembled, and made themselves partakers in its suppression. And now, they “despised, were disgusted” with the knowledge of God, as all do in fact despise and dislike it, who prefer ought besides to it. So God repaid their contempt to them, and took away the office, which, by their sinful connivances, they had hoped to retain.
Seeing thou hast forgotten the law of thy God - This seems to have been the sin of the people. For the same persons could not, at least in the same stage of sin, despise and forget. They who despise or “reject,” must have before their mind that which they “reject.” To reject is willful, conscious, deliberate sin, with a high hand; to “forget,” an act of negligence. The rejection of God’s law was the act of the understanding and will, forgetfulness of it comes from the neglect to look into it; and this, from the distaste of the natural mind for spiritual things, from being absorbed in things of this world, from inattention to the duties prescribed by it, or shrinking from seeing “that” condemned, which is agreeable to the flesh. The priests knew God’s law and “despised” it; the people “forgat” it. In an advanced stage of sin, however, man may come to forget what he once despised; and this is the condition of the hardened sinner.
I will also forget thy children - Literally, “I will forget thy children, I too.” God would mark the more, that His act followed on their’s; they, first; then, He saith, “I too.” He would requite them, and do what it belonged not to His Goodness to do first. Parents who are careless as to themselves, as to their own lives, even as to their own shame, still long that their children should not be as themselves. God tries to touch their hearts, where they are least steeled against Him. He says not, “I will forget thee,” but I will forget those nearest thy heart, “thy children.” God is said to forget, when He acts, as if His creatures were no longer in His mind, no more. the objects of His providence and love.