'Lo' in the Bible

Sing and rejoice, O daughter of Zion; for, lo, I come, and I will dwell in the midst of thee, saith Jehovah.

For I will no more pity the inhabitants of the land, saith Jehovah; but, lo, I will deliver the men every one into his neighbor's hand, and into the hand of his king; and they shall smite the land, and out of their hand I will not deliver them.

For, lo, I will raise up a shepherd in the land, who will not visit those that are cut off, neither will seek those that are scattered, nor heal that which is broken, nor feed that which is sound; but he will eat the flesh of the fat'sheep , and will tear their hoofs in pieces.