And when he had considered the thing, he came to the house of Mary the mother of John, whose surname was Mark…
That's right. Bang away! If Christians will not bestir themselves at your first call, hammer at them until they do. There is nothing like persistency for overcoming the sluggishness and sloth of half-hearted faith. The preacher, or the teacher, or the parent, or the Christian worker in any sphere, who turns away from the door of the heart he wants to enter, simply because it is not opened at his first call, is not really deserving of success in his mission. "Knock, and it shall be opened unto you." If it is not opened the first time, knock again. If it is not opened after ten times knocking, continue knocking until it is opened. When the door is opened, you can enter in. But until it is opened, your duty is to keep up a knocking.
(H. C. Trumbull.)
Parallel VersesKJV: And when he had considered the thing, he came to the house of Mary the mother of John, whose surname was Mark; where many were gathered together praying.