Charles Ellicott Commentary 2 Kings 10:31

"But Jehu took no heed to walk in the law of Jehovah, the God of Israel, with all his heart: he departed not from the sins of Jeroboam, wherewith he made Israel to sin." — 2 Kings 10:31 (ASV)

But Jehu took no heed. —Or, Now Jehu had not been careful. This verse, rather than the next, begins a new paragraph.

To walk in the law — that is, the Mosaic law, which forbids the use of images, such as the “calves.”

With all his heart. —This is explained by the next sentence. He had done honour to Jehovah by extirpating the foreign Baal-worship, but he supported the irregular mode of worshipping Jehovah established by Jeroboam as the state religion of the Northern kingdom.

For. —Not in the Hebrew.