"I will wait for the Lord, who is hiding his face from the house of Jacob. I will put my trust in him." NIV translation
God's people waited hundreds of years for the coming of the Messiah. Many times it seemed like God had left them alone to fend for themselves but He was always looking out for His children.
"Here am I, and the children the Lord has given me. We are signs and symbols in Israel from the Lord Almighty, who dwells on Mount Zion." NIV translation
Isaiah lets us see why he had given his sons the names that he had which were not your ordinary names. He understood that they were from God and had a special purpose and part of that purpose required very unordinary names. God has a special purpose for all of His children and we just have to listen and follow as Isaiah did even if it is strange.
"When men tell you to consult mediums and spiritists, who whisper and mutter, should not a people inquire of their God? Why consult the dead on behalf of the living?" NIV translation
This verse seems to be very timely for the days that we live in where people will turn to everything but God for answers. It seems like everywhere you look there is some kind of psychic or medium nonsense. When we see these things, we should take to heart these questions that Isaiah asks here.
"To the law and to the testimony! If they do not speak according to this word, they have no light of dawn." NIV translation
Isaiah is reminding us here that everything must line up with God's word which is truth. If the words don't line up with scripture, then they have no light and in fact are of darkness. We have to be very careful as today many will take a verse or two of scripture and twist it around to fit what they want to say. If we study God's word and listen to the leading of the Spirit we will not be deceived by this twisting of the Word.