Here we are reminded that the Lord answers the prayers of those who are persistent in asking, seeking, and knocking. We are not to ask for things in a manner which is selfish, for the Lord will not answer such prayers.
Jesus encourages us by reminding us that even earthly fathers, who are evil, know how to give good things to their children. How much more, then, will our Heavenly Father give what is good to His children? We reflect on the fact that the ultimate good that God can give us is His Holy Spirit, and our prayer then becomes a prayer for revival, seeking always the glory of our God.