Maybe It’s Broken Relationships

24 Therefore, I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours. 25 And when you stand praying, if you hold anything against anyone, forgive them, so that your Father in heaven may forgive you your sins.
Mark 11:24–25

23 Therefore, if you are offering your gift at the altar and there remember that your brother or sister has something against you, 24 leave your gift there in front of the altar. First go and be reconciled to them; then come and offer your gift.
Matthew 5:23-24

Husbands, in the same way be considerate as you live with your wives, and treat them with respect as the weaker partner and as heirs with you of the gracious gift of life, so that nothing will hinder
your prayers.
1 Peter 3:7 

Maybe It’s Wrong Motives

When you ask, you do not receive, because you ask with wrong motives, that you may spend what you get on your pleasures.
James 4:3

Be careful not to practice your righteousness in front of others to be seen by them. If you do, you will have no reward from your Father in heaven.
Matthew 6:1

Maybe It’s Lack of Faith

22 “It has often thrown him into fire or water to kill him. But if you can do anything, take pity on us and help us.” 23 “‘If you can’?” said Jesus. “Everything is possible for one who believes.” 24 Immediately the boy’s father exclaimed, “I do believe; help me overcome my unbelief!”
Mark 9:22–24 

And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that he rewards those who earnestly seek him.
Hebrews 11:6

Maybe God Has Something Different

14 This is the confidence we have in approaching God: that if we ask anything according to his will, he hears us. 15 And if we know that he hears us—whatever we ask—we know that we have what we asked of him.
1 John 5:14–15