KJV:
For they have committed adultery, and blood is in their hands, and with their idols have they committed adultery, and have also caused their sons, whom they bare unto me, to pass for them through the fire, to devour them.
NKJV:
For they have committed adultery, and blood is in their hands, and with their idols they have committed adultery, and have also caused their sons, whom they bore to Me, to pass through the fire, to devour them.
NIV:
They committed adultery with their idols; they even sacrificed their children, whom they bore to me, as food for them.
Interpretation:
The verse describes how people committed infanticide by passing their children through fire. The verse shows that blood is on their hands from killing children. Infanticide is connected to idolatry and adultery. The verse teaches that killing children brings blood guilt. Such practices show complete rejection of God and His ways. Infanticide is a terrible sin that brings judgment.