'Lo' in the Bible

Yet now our flesh is as the flesh of our brethren, our children as their children: and, lo, we bring into bondage our sons and our daughters to be servants, and some of our daughters are brought unto bondage already: neither is it in our power to redeem them; for other men have our lands and vineyards.

And, lo, I perceived that God had not sent him; but that he pronounced this prophecy against me: for Tobiah and Sanballat had hired him.

Lo, we -- to-day -- are servants, and the land that Thou hast given to our fathers, to eat its fruit and its good -- lo, we are servants on it,