'Looks' in the Bible

But I tell you that whoever looks at a woman and cherishes lustful thoughts has already in his heart become guilty with regard to her.

"When any of you fast, never assume gloomy looks as the hypocrites do; for they disfigure their faces in order that it may be evident to men that they are fasting. I solemnly tell you that they already have their reward.

Jesus answered him, "No one who has put his hand to the plough, and then looks behind him, is fit for the Kingdom of God.

For if any one listens but does not obey, he is like a man who carefully looks at his own face in a mirror.

But he who looks closely into the perfect Law--the Law of freedom--and continues looking, he, being not a hearer who forgets, but an obedient doer, will as the result of his obedience be blessed.