"The first is just a sarcastic, "Thanks a lot, buddy!"
gratias tibi ago, domine.
Thank you, Lord.
haec credam a deo pio, a deo justo, a deo scito?
Am I to believe these things from a righteous god, a just god, a wise god?
cruciatus in crucem
To hell with your punishments! (literally "(put/send) punishments onto a cross")
tuus in terra servus, nuntius fui; officium perfeci.
I was your servant, your messenger on the earth; I did my duty.
cruciatus in crucem -- (with a dismissive wave of the hand) eas in crucem
To hell with your punishments!
And to hell with you! (literally, "may you go to a cross")"