50:7 God spoke to His people as their God and as their Judge. They had sinned against Him.
50:8-13 He was not charging them with failure to offer the sacrifices He had prescribed. They had done that. They erred in thinking that offering sacrifices was all He expected. He reminded them that He did not need their offerings. He already owned everything they presented to Him. The pagans believed they maintained their gods by offering them food. Yahweh did not need the sacrifices of His people.
50:14-15 God wanted His people to give Him what giving their animals and produce represented, namely their gratitude. Thank offerings expressed gratitude for something God had done for the offerer. Votive offerings were also expressions of thanks. God wanted His people to look to Him for their needs, and when He provided He wanted them to honor Him with gratitude. In other words, He wanted them to enjoy a vital relationship with Himself, not just a formal one in which He was their God and they were His people.
