Fortified Wall of Bronze?

...Who keeps us in life, and does not allow our feet to slip.
For Thou hast tried us, O God;
Thou hast refined us as silver is refined.
Thou didst bring us into the net;
Thou didst lay an oppressive burden upon our loins.
Thou didst make men ride over our heads;
We went through fire and through water;
Yet Thou didst (You will) bring us out into a place of abundance...
-Psalm 66:9-12-

Be of sober spirit, be on the alert. Your adversary, the devil, prowls about like a roaring lion, seeking someone to devour. But resist him, firm in your faith, knowing that the same experiences of suffering are being accomplished by your brethren who are in the world. And after you have suffered for a little while, the God of all grace, who called you to His eternal glory in Christ, will Himself perfect, confirm, strengthen and establish you...To Him be dominion forever and ever.
-1Peter 5:8-

Thy words were found and I ate them,
And Thy words became for me a joy and the delight of my heart;
For I have been called by Thy name,
O Lord God of hosts.
I did not sit in the circle of merrymakers, Nor did I exult.
Because of Thy hand upon me
I sat alone.For Thou didst fill me with indignation.
Why has my pain (my sin! my flesh!) been perpetual?
And my wound incurable, refusing to be healed?
Wilt Thou indeed be to me like a deceptive stream
With water that is unreliable?

Therefore, thus says the Lord,
"If you return, then I will restore you
Before Me you will stand
And if you extract the precious from the worthless,
You will become My spokesman.
They for their part may turn to you,
But as for you, you must not turn to them.
Then I will make you to this people a fortified wall of bronze
And though they fight against you,
They will not prevail over you;
For I am with you to save you
And deliver you," declares the Lord
"So I will deliver you from the hand of the wicked
And I will redeem you from the grasp of the violent."

-Jeremiah 15:15-21-

How incurable my flesh, Lord. Your Word seems to have failed...give me understanding - do not let the enemy rejoice over me! Establish me in righteousness for Your Name's sake. Make me a living reality of Redemption. How weak and feeble my prayers are...especially when I feel crushed by my own failure. Cause me to understand that my confidence is in YOUR righteousness...not my ability to keep all the law perfectly. Who dares to come before you based on anything but YOUR blood? Save us Lord...