Matthew 4:2

2Andκαὶhaving fastedνηστεύσαςdaysἡμέραςfortyτεσσεράκονταandκαὶnightsνύκταςfortyτεσσεράκονταafterwardὕστερονHe was hungryἐπείνασεν.

And having fasted forty days and forty nights, afterward He was hungry.