Isaiah 8:10

The God who is with us is the *Lord. It is he who commands heaven’s armies. There can be no greater power.

In the original language, ‘God is with us’ is the one word ‘Immanuel’ (see my note on Isaiah 7:14).

God warns Isaiah

v11 The *Lord spoke with his strong hand upon me: ‘Do not under any circumstances agree to Judah’s plans to give in to Syria and Israel. v12 Do not join in the schemes of the peoples. Do not be afraid of the things that frighten them. v13 It is the most holy *Lord (commander of heaven’s armies) who should frighten you. If you greatly respect him, you need have no fear of anything or anybody. v14 The *Lord (commander of heaven’s armies) is like a place to hide in. But Israel and Judah have refused his care. So the *Lord (commander of heaven’s armies) will be like a stone that causes Israel and Judah to trip. v15 Many will trip and fall. They will hurt themselves. A trap will seize them.’