who set out to go down to Egypt, without asking for my direction, to take refuge in the protection of Pharaoh and to seek shelter in the shadow of Egypt!
2. They walk that they may go down into Egypt. The reason why the Prophet condemns this “going down” has been already explained; {Bogus footnote} but as their guilt was aggravated by open and heinous obstinacy, he again repeats that they did this without asking at the mouth of God, and even in the face of his prohibition. Strengthening themselves with the strength of Pharaoh.
It was often the fault and folly of the people of the Jews that, when they were insulted by their neighbours on one side, they sought for succour from their neighbours on the other side, instead of looking up to God and putting their confidence in him. Against the Israelites they sought to the Syrians, Ch2 16:2, Ch2 16:3. Against the Syrians they sought to the Assyrians, Kg2 16:7.
Commenting on Isaiah 30:1-7
That walk to go down into Egypt,.... That walk out of their own land to go thither; who sent messengers thither to form an alliance, and get help and assistance, or went in person, to secure themselves from present danger. Jarchi refers this to the times of Hoshea, the son of Elah, king of Israel, who sent messengers to So, king of Egypt, Kg2 17:4.