But Zipporah took a flint knife, cut off her son’s foreskin, and touched it to Moses’ feet. “Surely you are a bridegroom of blood to me,” she said.
25. Then Zipporah took a sharp stone. Because the wife here improperly assumed this office, some of the Rabbins conjecture that this was done in the absence of her husband; but the context contradicts them; and therefore I doubt not but that she seized hold of a knife or a stone hastily, as is common in times of fear and confusion.
Moses neglected to circumcise his son, likely because he was too fond of his Midianite wife and too indulgent of her will, and so God met him in anger to kill him. Omissions are sins; the neglect of the covenant's seals shows we undervalue the promises and despise the conditions. Even good men grow slack in duty when cut off from the company of the faithful.
AI summary
Commenting on Exodus 4:24-31
So he let him go,.... That is, the Lord let Moses go; suffered him to go on his journey without any further interruption; as the Targums, "it", the angel, ceased from him, or left him; or the disease and trembling departed from him, as Aben Ezra, and he was quite well and easy; though Grotius, after Lyra, understands it of Zipporah, she departed from him...