For the LORD takes delight in his people; he crowns the humble with salvation. Let the saints rejoice in this honor and sing for joy on their beds. (Psalm 149:4-5)
Nothing makes God more happy than when His faithful are happy. God wants what is best for us and when we follow God’s ways, our lives become filled with joy and gladness. And God rejoices with us.
As A.W. Tozer writes -

“In almost everything that touches our everyday life on earth, God is pleased when we’re pleased. He wills that we be as free as birds to soar and sing our maker’s praise without anxiety.”


