Intercession

 Elisabeth Elliot ~

Intercession is the hardest work in the world--the giving of one's self, time, strength, energy, and attention to the needs of others in a way that no one but God sees, no one but God will do anything about, and no one but God will ever reward you for.

See Matt. 6:6

But you, when you pray, go into your room, and when you have shut your door, pray to your Father, who is in the secret place; and your Father who sees in secret will reward you openly.