He does not simply judge— that is, decide the particular question brought before him; but he takes the opportunity to educate and instruct…

Then Jethro, Moses's father-in-law, took Zipporah, Moses's
wife
When he had heard of …

Jethro came to rejoice with Moses in the happiness of Israel, and to bring his wife and children to him. Moses must have his family with him, so th…