This waiting upon the LORD refers to waiting for the True Messiah Jesus Christ believing upon Him, instead of the false spurious messiah who comes first.

 

Isa 8:18   Behold, I and the children whom the LORD hath given me are for signs and for wonders in Israel from the LORD of hosts, Which dwelleth in mount Zion.

     Which 'children' are being spoken of here? 'Shear-jashub' of Isaiah 7:3 are these 'children', for if you'll remember that word means in the Hebrew: 'a remnant shall return' (Strong's no. 7610). This is the first child of this prophecy in Isaiah. The second children are represented by 'Maher-shalal-hash-baz' meaning 'haste to the spoiler, speed to plunder'. This verse is letting us know that God has provided a remnant (the first child) that knows His Truth, which shall be gathered back together to Zion. This word 'me' probably should have been capitalized, for He is Immanuel, the One to Whom the Father gave these children that are for 'signs' and 'wonders'.

 

John 6:37: All that the Father giveth me shall come to me; and him that cometh to me I will in no wise cast out.

 

John 17:12: While I was with them in the world, I kept them in your name: those that thou gavest me I have kept, and none of them is lost, but the son of perdition; that the scripture might be fulfilled.

 

John 18:9: That the saying might be fulfilled, which he spake, of them which thou gavest me have I lost none.

 

 These other children of the 'spoiler' are Satan's own.
    Zion is God's favourite place on earth, and will be where He will dwell with man.

 

Also see the last verse of Ezekiel. 48:35 It was round about eighteen thousand measures: and the name of the city from that day shall be, The Lord is there.

Isa 8:19   And when they shall say unto you, 'Seek unto them that have familiar spirits, and unto wizards that peep, and that mutter:' should not a people seek unto their God? for the living to the dead?

      These evil children have fabricated many false systems of worship and pagan practices, all designed to trap you away from The One God YHVH through Christ Jesus. Many of them even teach God's Word in some pulpits. Can you recognize them? The last part of this verse is saying, "Why would anyone alive in the flesh want to seek for the dead?" Seek God, Jehovah, and everyone’s True Father. God created all souls, including Satan who rebelled against Him. Want to know what's going to happen in the future? Read God's Word, for He has told us.

 

Isa 8:20   To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.

     This verse is letting us know that whatever doctrine man teaches; if it doesn't align with God's Word, then there is no 'light' of God's Holy Spirit in that man. It's not that difficult to discover in many of today's Churches doctrines that do not align with God's Word. Probably the single easiest method of exposing them is to get a Strong's Concordance and look it up for yourself. That word Easter would be a good starting place, for how many Churches do not celebrate Easter as representing Christ's resurrection time? More do than not. You can even reveal the lie to many of the Church leaders, and they'll just pass it off, why? Because they've been following the status quo traditions for centuries, and to stop now would be admitting guilt. That's kind of bringing' judgment