And Jesus answering saith unto them, Have faith in God.
For verily I say unto you, That whosoever shall say unto this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass; he shall have whatsoever he saith.
Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them.
And when ye stand praying, forgive, if ye have ought against any: that your Father also which is in heaven may forgive you your trespasses. Mark 11:22-25
What we say is as important as what we believe. We must speak to the problems and command them to be removed. Believe that what we say will be done and we will have what we say.
We are to believe we receive when we pray!
Failing to forgive can hinder and block answers to prayer.