If you have a desire for one thing then you are discontent with the other thing. For the Christian they desire Christ and therefore are discontent with the world and with sin.
The Calculations of True Faith
How Is It That God Desires To Be With Us!?
Biblical Tests of True Faith
The Mark of True Faith
Enslaved to the Desires of The Flesh (Part 4)
Traits of a True Christian
True Zeal for Christ
Faithfulness: A True Virtue
Do You Believe in the True Christ?
Christ The True Vine (Part 1)
What is Faith?
Can You Hate Someone and Be a True Christian?
Why is Fasting so Little Employed by True Christians?
Obtain a Testimony by Faith, Not Feelings
Faith is NOT About Looking at Yourself