'Lo' in the Bible

The Lord Jehovah hath sworn by his holiness, that, lo, the days shall come upon you, that they shall take you away with hooks, and your residue with fish-hooks.

For, lo, he that formeth the mountains, and createth the wind, and declareth unto man what is his thought; that maketh the morning darkness, and treadeth upon the high places of the Earth-jehovah, the God of hosts, is his name.

Thus the Lord Jehovah showed me: and, behold, he formed locusts in the beginning of the shooting up of the latter growth; and, lo, it was the latter growth after the king's mowings.

For, lo, I will command, and I will sift the house of Israel among all the nations, like as grain is sifted in a sieve, yet shall not the least kernel fall upon the earth.