'Begin' in the Bible

Rise ye, journey and pass over the brook Arnon; see, I have given into thy hand Sihon king of Heshbon, the Amorite, and his land; begin to possess, and stir up thyself against him in battle.

This day I begin to put thy dread and thy fear on the face of the peoples under the whole heavens, who hear thy fame, and have trembled and been pained because of thee.

And Jehovah saith unto me, See, I have begun to give before thee Sihon and his land; begin to possess -- to possess his land.

'Seven weeks thou dost number to thee; from the beginning of the sickle among the standing corn thou dost begin to number seven weeks,