Wherefore He is able also to save them to the uttermost that come unto God by Him, seeing He ever liveth to make intercession for them. – Hebrews 7:25

“Nor prayer is made on earth alone;
The Holy Spirit pleads;
And Jesus, on the eternal throne,
For sinners intercedes.”

Prayer was dear to Jesus when He was the Man of Nazareth upon the mountain’s lonely side; and prayer is dear to Him now that as the Son of God He intercedes in glory. Even to Him the covenant hath this condition of prayer appended, “Ask of Me, and I will give Thee the heathen for Thine inheritance, and the uttermost parts of the earth for Thy possession.” Prayer is the atmosphere which surrounds Emanuel’s land: as the clouds hang on the mountains, so doth prayer linger over every great mercy of God.

Prayer is connected with every covenant blessing. Why, beloved, it is to him that calleth upon the name of the Lord that the promise of salvation is given. Our heavenly Father gives the Holy Spirit to those that ask Him. Justification was given to the publican rather than to the Pharisee, because he had offered humble, believing, acceptable prayer; whereas the Pharisee asked nothing, but only glorified himself. Adoption begets prayer, for it brings us the spirit of adoption whereby we cry, Abba, Father. From election right onward to perfection in Christ there is no blessing of the covenant but what is understood, received, enjoyed, fed upon, and practically used in the way of prayer. Those who would safely navigate the sea of life must pray their passage to heaven. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1480.cfm