'Pray To The Lord' in the Bible

Moses said, "Behold, I go out from you, and I will pray to the LORD that the swarms of flies may depart from Pharaoh, from his servants, and from his people, tomorrow; only do not let Pharaoh deal deceitfully any more in not letting the people go to sacrifice to the LORD."

Pray to the LORD; for there has been enough of mighty thunderings and hail. I will let you go, and you shall stay no longer."

Now therefore please forgive my sin again, and pray to the LORD your God, that he may also take away from me this death."