Leviticus 24:15 - Ellicott's Commentary On The Whole Bible

Whosoever curseth his God. — As Moses had to appeal to God for direction, the Lord has not only declared what should be done with this particular offender, but lays down a general law for the punishment of blasphemers. As the criminal who is the immediate occasion of this enactment is an Egyptian, directions are given, in the first place, about the treatment of Gentiles who temporarily sojourn among the Hebrews, and who have not as yet renounced their faith in their own God. If such a Gentile curses his own God in whom he still professes to believe, he shall bear his sin; he must suffer the punishment for his sin from the hands of his co-religionists, whose feelings he has outraged. The Israelites are not to interfere to save him from the consequence of his guilt; for a heathen who reviles the god in whom he believes is not to be trusted in other respects, and sets a bad example to others, who might be led to imitate his conduct.