Monergism

“[God] wills creatures, not for something they are or that is in them, but for his own sake. He remains his own goal. He never focuses on his creatures as such, but through them he focuses on himself. Proceeding from himself, he returns to himself. It is one single propensity that drives him to himself as the ultimate end and to his creatures as the means to that end. His love for himself incorporates into itself the love he has for his creatures and through them returns to himself. Therefore, his willing, also in relation to creatures, is never a striving for some as yet unpossessed good and hence no sign of imperfection and infelicity. On the contrary: his willing is always – also in and through his creatures – absolute self-enjoyment, perfect blessedness, divine rest.”
- Bavinck, Reformed Dogmatics, p. 2.233

How sweet all at once it was for me to be rid of those fruitless joys which I had once feared to lose! ... You drove them from me, you who are the true, the sovereign joy. You drove them from me and took their place, you who are sweeter than all pleasure.
Augustine

God would be unrighteous (just as we would) if he valued anything more than what is supremely valuable. If he did not take infinite delight in the worth of his own glory he would be unrighteous. For it is right to take delight in a person in proportion to the excellence of that person's glory.
John Piper Desiring God pg. 32