John Wesley on Exodus 18:1

Jethro to congratulate the happiness of Israel, and particularly the honour of Moses his son - in - law; comes to rejoice with them, as one that had a true respect both for them and for their God. And also to bring Moses's wife and children to him. It seems he had sent them back, probably from the inn where his wife's lothness to have her son circumcised had like to have cost him his life, Ex 4:25.