Psalm 101:3 KJV - I will set no wicked thing before mine eyes: I hate the work of them that turn aside; it shall not cleave to me.

A Psalm of David that we can all take to heart as we strive for purity. In the second part of the verse we see that we must hate such things for them to lose their grip on us. With our human nature it is impossible to hate sin, but through Christ all things are possible. Pray to Him in your times of struggle and temptations, and he can give you the power to overcome.