To You, O Lord, I lift up my soul. O my God, in You I trust, Do not let me be ashamed; Do not let my enemies exult over me. Indeed, none of those who wait for You will be ashamed; Those who deal treacherously without cause will be ashamed. Make me know Your ways, O Lord; Teach me Your paths. Lead me in Your truth and teach me, For You are the God of my salvation; For You I wait all the day. Psalms 25:1–5, NASB
Doubting God and His promises, and worrying about things that are in God’s control, are sins. Our enemy focuses primarily in His attacks on us in attempts to bring us to a place where we doubt God. This struggle comes to all who commit themselves to serving God with their lives. The closer they draw to God, the more Satan or his forces attempt to bring discouragement and despair to bear on these believers in an attempt to thwart their devotion to their Lord.