James 4:3

Ye ask, and receive nothing, because ye ask vilely, in order to consume it on your sensual appetites.

Matthew 6:7

And when thou art at prayer, use not vain repetitions, like the heathen: for they imagine that they shall be heard for their much speaking.

Matthew 20:21-22

Then he said to her, What is thy wish? She saith unto him, Tell me that these my two sons shall sit, the one at thy right hand, and the other at thy left, in thy kingdom.

Treasury of Scripture Knowledge

Summary

Surely God will not hear vanity, neither will the Almighty regard it.

Bible References

God

Matthew 6:7
And when thou art at prayer, use not vain repetitions, like the heathen: for they imagine that they shall be heard for their much speaking.
Matthew 20:21
Then he said to her, What is thy wish? She saith unto him, Tell me that these my two sons shall sit, the one at thy right hand, and the other at thy left, in thy kingdom.
James 4:3
Ye ask, and receive nothing, because ye ask vilely, in order to consume it on your sensual appetites.