Exodus 34:17

Thou shalt make thee no molten gods.

Thou shalt make thee no molten gods was spoken in the renewal of the covenant after Israel's sin, when Moses met with God in worship and intercession and God promised to renew His favor to the people. At that time Moses remained forty days and nights on the mount, miraculously sustained with no man permitted to go up, and at God's command prepared two tables of stone on which God wrote the words of the covenant, the Ten Commandments. When Moses came down from that communion his face reflected the glory of the divine presence with dazzling light, and in conscious guilt Israel feared the heavenly light and shrank from him, so he put a veil upon his face when he returned to the camp and spoke to them.

The command to make no molten gods requires obedience to God's Ten Commandments, including keeping the seventh-day Sabbath He sanctified for His people as declared in His Word. It warns against mixing with the inhabitants of the land and following other interests instead of serving the Lord God of Israel with all heart, soul, and mind. It warns against becoming careless and indifferent about which day to keep, so since God has specified the very day there is no excuse for keeping the first day of the week.