I’ve been loving E.M. Bounds’ book On Prayer. I highly recommend it so far. In chapter 6 he quotes Spurgeon. I hope this encourages and challenges you today.
What reason can be given why we should be exempted from prayer? What argument can there be why we should be deprived of the privilege and delivered from the necessity of supplication? I can see none; can you? God will bless Elijah and send rain on Israel, but Elijah must pray for it. If the chosen nation is to prosper, Samuel must plead for it. If the Jews are to be delivered, Daniel must intercede. God will bless Paul, and the nations will be converted through him, but Paul must pray. Indeed, he did pray without ceasing; his epistles show that he expected nothing except by asking for it. If you may have everything by asking, and nothing without asking, I beg you to see how absolutely vital prayer is, and I beseech you to abound in it.