to pray: to speak to God in earnest petition, often on someone else's behalf
This is the older, plainer Greek word for praying, and it carries the weight of a solemn appeal made directly to God. By the time the New Testament was written, the church usually reached for a newer, more specialized word for prayer (προσεύχομαι), so when this verb turns up it tends to mark a heightened or formal moment of address. Where it means "prayer", the writer almost always makes that clear by saying who is being addressed, often adding "to God."
The senses here are not really different prayers but the same act seen in different settings:
- an apostle interceding for a struggling church
- a prisoner praying for his hearers before a king
- terrified sailors crying out in a storm
- believers told to pray for one another so that the sick may be healed
What unites them is a person turning to God with a request that matters deeply, frequently for the good of someone else rather than themselves.