"Do not, therefore, fling away your [fearless] confidence, for it has a glorious and great reward. For you have need of patient endurance [to bear up under difficult circumstances without compromising], so that when you have carried out the will of God, you may receive and enjoy to the full what is promised." [Hebrews 10:35-36 Amplified]
"Then if anyone says to you, ‘Look, here is the Christ (the Messiah, the Anointed)!’ or, ‘Look, He is there!’ do not believe it; for false Christs and false prophets will arise, and they will provide signs and wonders in order to deceive, if [such a thing were] possible, even the elect [those God has chosen for Himself]. But be on your guard; I have told you everything in advance." [21-23 Amplified]
But the World looks for insecurity. Consider how many modern movies have protagonists torn with self-doubt from beginning to end. The characters with confidence all the way through tend to get killed off.
Nothing scares Satan more than a Christian who is confident in what God has given him in terms of authority. He throws sickness and the confident Christian brushes it aside. He throws financial ruin and the confident Christian steps through more like the Terminator than a hobbit.
“No weapon that is formed against you will succeed; And every tongue that rises against you in judgment you will condemn. This [peace, righteousness, security, and triumph over opposition] is the heritage of the servants of the Lord, And this is their vindication from Me,” says the Lord. [Isaiah 54:17 Amplified]No weapon formed. To walk in that promise we need confidence.
We were made in God's image. A part of that is "The Lord is a Warrior, the Lord is His Name" says Exodus 15:3. Somehow we have swept that under the mat. Granted our battles are waged on a Spiritual battlefield, but they are war nonetheless.
Be confident. Satan cannot take it from you, but if you look at the wind and the waves of the storm around you, you'll find yourself throwing that confidence aside.
Put your Faith where it belongs: in the one who made us in His image.
Hold fast to your Confidence in Him.
Don't throw it away because things are a bit tough. If you do, you'll never receive the glorious and great reward waiting for us.
Hold fast. Jesus is right there.