2 Chronicles 29:23 - Joseph Benson’s Commentary on the Old and New Testaments

They laid their hands upon them The king and the elders of the people, in the name of the whole congregation: thereby owning themselves guilty before God, and expressing their desire that the guilt of their sin might be transferred upon the sacrifice. By faith we lay our hands on the Lord Jesus, and so receive the atonement, Romans 5:11. Burnt- offerings were offered with the sin-offerings, the intention of which was to give glory to the God of Israel, whom they owned as the only true God, and their God, which it was proper to do, at the same time that they were, by the sin-offering, making atonement for their offences.