'Definite' in the Bible

The Lord set a definite time, saying, “Tomorrow the Lord will do this thing in the land.”

Then the king said to me, the queen sitting beside him, “How long will your journey be, and when will you return?” So it pleased the king to send me, and I gave him a definite time.

Yet I have nothing definite about him to write to my lord. Therefore I have brought him before you all and especially before you, King Agrippa, so that after the investigation has taken place, I may have something to write.