Moreover thou hast taken thy sons and thy daughters, whom thou hast borne unto me, and these hast thou sacrificed unto them to be devoured. Is this of thy whoredoms a small matter,
Thy sons and thy daughters, whom thou hast born unto me. Though thy "children," yet they belong "unto me" rather than to thee, because they were born under the immutable covenant with Israel, which even Israel's sin could not set aside, and have received the sign of adoption as mine, namely, circumcision. This aggravates the guilt of sacrificing them to Moloch.
These hast thou sacrificed unto them to be devoured - not merely to pass through the fire, as sometimes children were made to do, by way of purification. (Leviticus 18:21), without hurt, but to pass through so as to be made the food of the flame in honour of idols (Isaiah 57:5; Jeremiah 7:31; Jeremiah 19:5; Jeremiah 32:35, notes).
Is this of thy whoredoms a small matter that thou hast slain my children? rather 'Were thy Is this of thy whoredoms a small matter, that thou hast slain my children? - rather, 'Were thy whoredoms a small matter (i:e., not enough, but), that thou hast slain (i:e., must also slay)? etc. As if thy unchastity was not enough, thou hast added this unnatural and sacrilegious cruelty (Micah 6:7).