Rejoice!

I will praise the LORD according to his righteousness: and will sing praise to the name of the LORD most high.
Psalm 7:17

Sing praises to God, sing praises: sing praises unto our King, sing praises.
Psalm 47:6

I will praise thee, O Lord, among the people: I will sing unto thee among the nations.
Psalm 57:9

Sing forth the honour of his name: make his praise glorious.
Psalm 66:2

I will sing of the mercies of the LORD for ever: with my mouth will I make known thy faithfulness to all generations.
Psalm 89:1

Jude 21

Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.

I Corninthians 1:26-27

But God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty