"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
Beloved there's the assurance that God will grant our desired request presented at His throne of mercy. There's however a precondition for the manifestation of this assurance and that's allowing His words to take root in our lives. Before presenting petitions to the Lord, we need to first do a soul searching to determine whether His words abide in us, and this cannot be unless we abide in Him! Remember the scripture says 'the entrance of His words brings light'. When there's abundance of His words firmly rooted in us, there's no way we will ask amiss for He will always teach us what to ask.
Therefore it is not enough to quote Matthew 7:7 - "Ask and you shall receive...." without first abiding in Him. May the Lord bless us with the grace to abide in Him and allow His words take firm root in our lives in Jesus name. Have a marvellous day!