The command to “remember” is often used in the sense of “keep in mind.” The law of Moses was not forgotten. That is clear from the fact that they are rendering at least a semblance of obedience to the laws of Moses. They are offering sacrifices as prescribed by the law. However, they were offering defective animals, thereby breaking the law they pretend to obey (Malachi 1:8). While claiming to observe the laws of Moses, they commit grievous sins. They commit adultery, and they swear falsely. They oppress the hired workers, the widows, and the fatherless (Malachi 3:5). They obey some of the laws of Moses while breaking other laws. For example, they offer sacrifices, but they divorce their godly wives, and marry pagan women of foreign nations (Malachi 3:11–14). They offer their tithes in accordance with the law of Moses. However, they only give a part of what was required, and not the full tithe (Malachi 3:10). The command to “remember” means “to take heed to” in the sense of obey.
4 “Remember the law of my servant Moses, the statutes and rules that I commanded him at Horeb for all Israel.