John 4:24
God is a spirit, and they that worship Him, must worship in spirit and truth.
Matthew 6:5-8
And when thou prayest, be not like the hypocrites; for they love to pray in public assemblies, and in the corners of the streets, that they may be taken notice of by men. Verily I say unto you, they have their reward.
Matthew 23:13
But wo unto you scribes and pharisees, hypocrites, who shut up the kingdom of heaven against men: for ye neither go in yourselves, nor suffer those that are entering to go in.
John 14:23
Jesus answered and said unto him, If any one love me, he will observe my word: and my Father will love him, and we will come unto him, and will make our abode with him.
James 4:8
Draw near to God, and He will draw near to you: cleanse your hands, O sinners, and purify your hearts, ye double minded.
1 John 3:20-22
For, if our heart condemn us, God is still greater than our heart, and knoweth all things.