God is happy! St. Augustine says that God is happy and makes people happy. Happiness is part of the very mystery of his being. Being the highest good, he is also the highest and infinite happiness. St. Francis of Assisi exclaims, “You are joy; You are . . . joy” in his “Praises of God.”
God is happiness for the very same reason that the Trinity is happy: because he is love. Happiness, in fact, is to love and be loved. God, from all eternity, loves his Son with an infinite love, and the Son returns that love with an equally infinite love. The Father finds “all his pleasure,” that is, his happiness, in him. Since God is happy, he does everything that he does with joy: he creates with joy (see Job 38:7), he saves with joy, and he even suffers with joy.