Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you… – Matthew 7:7

The Lord loves to hear the prayers of His people, and He sometimes keeps them waiting at the posts of His door, that they may pray more. It is always a blessing for us to pray as well as to get the answer to prayer. Prayer is in itself a blessing. When the Lord hears us knock faintly at the door, He does not open; we may knock and knock again-He likes us to knock; it does us good to knock. But when it comes to this, that it is all knocking with us, and our very soul and body seem to knock, and our heart and flesh cry after God, the living God: when we shall thus come to appear before God, and open our mouth and pant vehemently for the mercy He has promised, then it will come. When thou canst not take a denial, thou shalt not have a denial. The kingdom of heaven suffereth violence, and the violent take it by force. There is none so violent as the man who is in desperate need…Poor soul, go and plead your need before God. Plead your sin, tell Him you are wretched and undone without His sovereign grace. Use the strange argument which David used, the strangest in all the world, “For Thy name’s sake, O Lord! pardon mine iniquity, for it is great.” Plead the very greatness of your sin as a reason for mercy; the damnable character of your sin; the certainty that you will soon be cast into hell, the fact that He might justly drive you from His presence for ever; plead all that before Him; and say, “Lord, if ever the heights and depths of Thy grace might be seen in saving an undeserving soul, I am just that one. If Thy mercy wants to honor itself by saving the most undeserving, ill deserving, hell deserving sinner that ever lived, Lord, I am the man. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1037.cfm