'Lo' in the Bible

And it came to pass, when David dwelt in his house, that David said to Nathan the prophet, Lo, I dwell in a house of cedar, but the ark of the covenant of Jehovah dwelleth under curtains.

And Ornan said unto David, Take it to thee, and let my lord the king do that which is good in his eyes: lo, I give thee the oxen for burnt-offerings, and the threshing instruments for wood, and the wheat for the meal-offering; I give it all.