There is nothing worse that when faith and hope grow cold. As believers we are dependant upon God's Spirit moving in our lives. When God's Spirit ceases to move in our lives, it's because we have gotten off course, strayed away from God, and His plans and purposes. The end result can be faith and hope grown cold. When that happens, we must return unto the Lord and get back in tune with our first love. We must recognise how we got off course, why we got off course and see the error of our ways. When we do, as we repent and change course, God again renews us.
You see God will never forsake us or leave us, therefore why would we want to forsake or leave Him.
In His Glorious Name Ministries Online