If You Abide In Me.
If you abide in Me, and My words abide in you, you will ask what you desire, and it shall be done for you. John 15:7 NKJV
The blessed privilege which those have that abide in Christ. If my words abide in you, you shall ask what you will of my Father in my name, and it shall be done. See here how our union with Christ is maintained--by the word: If you abide in me he had said before, and I in you here he explains himself, and my words abide in you for it is in the word that Christ is set before us, and offered to us, Romans 10:6-8. It is in the word that we receive and embrace him and so where the word of Christ dwells richly there Christ dwells. If the word be our constant guide and monitor, if it be in us as at home, then we abide in Christ, and he in us.
How our communion with Christ is maintained--by prayer: You shall ask what you will, and it shall be done to you. And what can we desire more than to have what we will for the asking? Note, Those that abide in Christ as their heart's delight shall have, through Christ, their heart's desire. If we have Christ, we shall want nothing that is good for us. Two things are implied in this promise: First, That if we abide in Christ, and his word in us, we shall not ask any thing but what is proper to be done for us. The promises abiding in us lie ready to be turned into prayers and the prayers so regulated cannot but speed. Secondly, That if we abide in Christ and his word we shall have such an interest in God's favour and Christ's mediation that we shall have an answer of peace to all our prayers. - Matthew Henry