Psalm 47:1-2, 5-7 "O Clap your hands, all ye people; shout unto God with the voice of triumph. For the LORD most high is terrible; he is a great King over all the earth. God is gone up with a shout, the LORD with the sound of a trumpet. Sing praises to God, sing praises: sing praises unto our King, sing praises. For God is King of all the earth: sing ye praises with understanding."
Terrible in verse 2 is not meant like we would think of it. I looked it up in the concordance and it means:
1) to fear, revere, be afraid
2) to stand in awe of, be awed
3) to fear, reverence, honour, respect
So God is a God to be honored, respected, awed because he is so great, so high above us, so mighty, so holy.
I hope this blesses your day,