Because of Jesus, and what took place when God raised Him from the dead, provides everything you need to live a victorious life. Revelation of this truth and knowing who you are in Christ creates a boldness in you, to access with confidence His eternal purpose because of His faithfulness.
Ephesians 3:11-13
11 According to the eternal purpose which he purposed in Christ Jesus our Lord:
12 In whom we have boldness and access with confidence by the faith of him.
13 Wherefore I desire that ye faint not at my tribulations for you, which is your glory.