1) All waiting on God is a filled waiting. 

“For we are God’s handiwork, created in Christ Jesus to do good works, which God prepared in advance for us to do.” ~ Eph 2:10

As we wait on God for something, He fills our wait with other things to do.  Our waits are not a lull. It is not the dreary wait in an ER room of a hospital. 

2) To wait on God is to recharge. Waiting on God strengthens our faith and renews our strength

Without weakening in his faith, he faced the fact that his body was as good as dead—since he was about a hundred years old—and that Sarah’s womb was also dead. Yet he did not waver through unbelief regarding the promise of God, but was strengthened in his faith and gave glory to God, being fully persuaded that God had power to do what he had promised. ~ Rom. 4:19-21

But those who wait on the Lord
Shall renew their strength;
They shall mount up with wings like eagles,
They shall run and not be weary,

They shall walk and not faint.
    ~ Isaiah 40:31 

3) Waiting on God means that God is working for you. 

“From of old no one has heard or perceived by the ear, no eye has seen a God besides thee, who works for those who wait for him” ~ Is. 64:4 (RSV).

~ Note that in other versions it says “acts on your behalf” instead of works, but the idea is the same.

4) Waiting on God means things come sweetened with grace 

“He has made everything beautiful in its time. …” Eccles. 3:11

In God’s time, everything comes with beauty. In our time, things come either as plain vanilla blah, or they come all bungled up. 

You wait on the Lord and things won’t just come, but they will come sweetened with grace.