Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
LXX

2 Kings 21:6

And he caused his sons to pass through the fire, and used divination and auspices, and made groves, and multiplied wizards, so as to do that which was evil in the sight of the Lord, to provoke him to anger.

Read in other translations