The Apostle James once wrote:

“But be doers of the word, and not hearers only, deceiving yourselves.” James 1:22

Matthew Henry comments:

Hearing is in order to doing; the most attentive and the most frequent hearing of the word of God will not help us, unless we be also doers of it. If we were to hear a sermon every day of the week, and an angel from heaven were the preacher, yet, if we rested in bare hearing, it would never bring us to heaven. Therefore the Apostle James insists…that we practice what we hear.

As Richard Baxter said, “There must be inward practice by meditation, and outward practice in true obedience.”

It is not enough to

remember what we hear,

and to be able to repeat it,

and to give testimony to it,

and commend it,

and write it,

and preserve what we have written;

that which all this is in order to, and which crowns the rest, is that we be doers of the word.

(Taken from Henry’s Commentary on James).

God’s Word will do us no good if it doesn’t come flow our of our fingertips. The demons believe good theology, but God’s people live according to it. God’s Word will be of no help to you unless you live according to it.