Here is one of my favorite prayers from The Book of Common Prayer, and it was in our daily prayers this morning. It focuses on prayers of petition, and this weekend in our prayers for Haiti this prayer might be an encouragement:
Almighty God, who has promised to hear the petitions of those who ask in your Son’s Name:
We beseech you mercifully to incline your ear to us who have made our prayers and supplications to you;
and grant that those things which we have faithfully asked according to your will, we may effectually obtain,
to the relief of our necessity,
and to the setting forth of your glory.
Through Jesus Christ our Lord. Amen.