J.C. Ryle - A Call to Prayer
This is one of the common marks of all the elect of God, "They cry unto him day and night" (Luke 18:1). The Holy Spirit, who makes them new creatures, works in them the feeling of adoption, and makes them cry, "Abba, Father" (Rom. 8:15). The Lord Jesus, when he quickens them, gives them a voice and a tongue, and says to them, "Be dumb no more." God has no dumb children. It is as much a part of their new nature to pray, as it is of a child to cry. They see their need of mercy and grace. They feel their emptiness and weakness. They can not do otherwise than they do. They must pray.