"Judge not, lest ye be judged. For with what judgement ye judge, ye shall be judged. And with what measure ye met, it will be mete, it will be measured unto you again. And why beholdest thou the mote that is in thy brother's eye, But considerest not the beam that is in thine own eye." - Matthew 7:1-3
Recommended reading and listening;
The Holy Bible
More Thoughts on True Worship