Charles Spurgeon Commentary Luke 11:9

"And I say unto you, Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you." — Luke 11:9 (ASV)

And I say unto you, ask, and it shall be given you;

But if asking does not seem to prevail with God –

Seek, and ye shall find;

And if, for a while, you do not find, come closer in—

Knock, and it shall be opened unto you.

There are different methods of praying, and each one has its special adaptation to the state in which you may be; so use that method to which the Holy Spirit guides you, so use all methods until you prevail.