C.H. Spurgeon: A Name Guarantee

And whatsoever ye shall ask in My Name, that will I do, that the Father may be glorified in the Son — John 14:13

It is not every believer who has yet learned to pray in Christ's name. To ask not only for His sake, but in His name, as authorized by Him, is a high order of prayer. We would not dare to ask for some things in that blessed name, for it would be a wretched profanation of it; but when the petition is so clearly right that we dare set the name of Jesus to it, then it must be granted. Prayer is all the more sure to succeed because it is for the Father's glory through the Son. It glorifies His truth, His faithfulness, His power, His grace. The granting of prayer, when offered in the name of Jesus, reveals the Father's love to Him, and the honor which He has put upon Him. The glory of Jesus and of the Father are so wrapped up together that the grace which magnifies the one magnifies the other. The channel is made famous through the fullness of the fountain, and the fountain is honored through the channel by which it flows. If the answering of our prayers would dishonor our LORD, we would not pray; but since in this thing He is glorified, we will pray without ceasing in that dear name in which God and His people have a fellowship of delight.

Source: SermonAudio - Daily Devotional