'Pray for' in the Bible

And Samuel said, Gather all Israel to Mizpeh, and I will pray for you to Jehovah.

And all the people said to Samuel, Pray for your servants to Jehovah your God, so that we will not die. For we have added evil to all our sins, to ask a king for us.

Also, I, far be it from me that I should sin against Jehovah from ceasing to pray for you. But I will teach you the good and the right way.