John 15:7-8

He who doubts is like a wave of the sea driven and tossed by the wind. … for let not that man suppose that he will receive anything from the Lord; he is a double-minded man, unstable in all his ways.I marvel that you are turning away so soon from Him who called you in the grace of Christ, to a different gospel, which is not another… Even if we, or an angel from heaven, preach any other gospel to you than what we have preached to you, let him be accursed.You have become...

Abide in Me, and I in you. As the branch cannot bear fruit of itself, unless it abides in the vine, neither can you, unless you abide in Me. I am the vine, you are the branches. He who abides in Me, and I in him, bears much fruit; for without Me you can do nothing. § The fruit of the Spirit is love.By this My Father is glorified, that you bear much fruit; so you will be My disciples. As the Father loved Me, I also have loved you; abide in My love. If you keep My commandments, you...

And this is the confidence that we have in Him, that, if we ask any thing according to His will, He heareth us" (1 John 5:14).

In order for us to pray according to His will, we must first know His will; not only that, but His blessed will must become our will. "If ye abide in Me . . ....