[aruanan]

Is God sovereign or not?
If He says “jump”, do we say “how high” or do we say “no”?

If God is sovereign in the sense that Calvin and Zwigli taught, the "responses" of "how high" or "no" were planned before the beginning of creation and are utterly deterministic.

[stpio]

Catechsim of the Catholic Church

Paragraph 600 To God, all moments of time are present in their immediacy. When therefore he establishes his eternal plan of “predestination”, he includes in it each person’s free response to his grace: “In this city, in fact, both Herod and Pontius Pilate, with the Gentiles and the peoples of Israel, gathered together against your holy servant Jesus, whom you anointed, to do whatever your hand and your plan had predestined to take place.”395 For the sake of accomplishing his plan of salvation, God permitted the acts that flowed from their blindness.396

395 Acts 4:27-28; cf. Ps 2:1-2.

396 Cf. Mt 26:54; Jn 18:36; 19:11; Acts 3:17-18.