'Lo' in the Bible

Of him that rideth upon the heavens, the heavens which are of old: lo, he uttereth his voice, a mighty voice.

For lo, thine enemies, O Jehovah, for lo, thine enemies shall perish; all the workers of iniquity shall be scattered.

Lo, children are an inheritance from Jehovah, and the fruit of the womb a reward.

For there is not yet a word on my tongue, but lo, O Jehovah, thou knowest it altogether.