Jesus makes it plain that forgiveness is an essential requirement of all prayers. He also makes it abundantly clear that He will respond to all prayers of believers that are operating in obedience to God’s will, which will be the Holy Spirit’s leading.

Therefore I tell you, whatever you ask in prayer, believe that you have received it, and it will be yours. And whenever you stand praying, forgive, if you have anything against anyone, so that your Father also who is in heaven may forgive you your trespasses.” Mark 11:24-25

First, go and be reconciled to them” (Matthew 5:23-24). They may not forgive you, of course; they may reject your attempt or react with renewed anger over what you did, but then it becomes their problem, not yours. You will have done everything you could to let them know you regret what happened, and that you want their forgiveness.

Paul makes it clear that God answers humble prayers given with thanksgiving. We can also then be confident that the peace of God will “guard our hearts and minds“.

“Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus.” Philippians 4:6-7

See what David has to say about prayer. He loves God because He knows God responds to his prayers. Note what David says about calling on God as long as he lives. Also, note David differentiates between his body and soul.

“I love the LORD because he has heard my voice and my pleas for mercy. Because he inclined his ear to me, therefore I will call on him as long as I live.” Psalms 116:1-2

“The LORD preserves the simple; when I was brought low, He saved me. Return, O my soul, to your rest;
for the LORD has dealt bountifully with you.” Psalms 116:6-7

“For you have delivered my soul from death, yes, my feet from falling, that I may walk before God in the light of life.” Psalms 56:13

“For you have delivered my soul from death, my eyes from tears, my feet from stumbling; I will walk before the LORD in the land of the living.” Psalms 116:8-9

I love the following Scripture on prayer, it tells us so much 1. Rejoice always, 2. Pray without ceasing in all circumstances, 3. When we do, rejoice, be thankful, and pray we are in the will of God, 4. Do not quench the Holt Spirit within you, 5. Do not despise prophecies (there are about 2000 prophecies of Jesus’ second coming), 6. Test everything, be Bereans, 7. Hold fast to what is good and reject the rest.

“Rejoice always, pray without ceasing, give thanks in all circumstances; for this is the will of God in Christ Jesus for you. Do not quench the Spirit. Do not despise prophecies, but test everything; hold fast what is good.” 1 Thessalonians 5:16-21