A partial set of notes and Scriptures:

(Heb 3:14)  For we have become partakers of Christ if we hold the beginning of our confidence steadfast to the end,
(Heb 3:15)  while it is said: "TODAY, IF YOU WILL HEAR HIS VOICE, DO NOT HARDEN YOUR HEARTS AS IN THE REBELLION."
Steadfast = Courage, perseverance, GRIT.

TED talk on GRIT
https://www.ted.com/talks/angela_lee_duckworth_grit_the_power_of_passion_and_perseverance/up-next

(Jer 11:18)  Now the LORD gave me knowledge of it, and I know it; for You showed me their doings.
(Jer 11:19)  But I was like a docile lamb brought to the slaughter; and I did not know that they had devised schemes against me, saying, "Let us destroy the tree with its fruit, and let us cut him off from the land of the living, that his name may be remembered no more."
(Jer 11:20)  But, O LORD of hosts, You who judge righteously, Testing the mind and the heart, Let me see Your vengeance on them, For to You I have revealed my cause.
(Jer 11:21)  "Therefore thus says the LORD concerning the men of Anathoth who seek your life, saying, 'Do not prophesy in the name of the LORD, lest you die by our hand'—
(Jer 11:22)  therefore thus says the LORD of hosts: 'Behold, I will punish them. The young men shall die by the sword, their sons and their daughters shall die by famine;
(Jer 11:23)  and there shall be no remnant of them, for I will bring catastrophe on the men of Anathoth, even the year of their punishment.' "

Jer. 1:1
They do not like what he is doing so much that they are plotting against him and Jeremiah Cries Out to GOD for help.
Jer 12:1  Righteous are You, O LORD, when I plead with You; Yet let me talk with You about Your judgments. Why does the way of the wicked prosper? Why are those happy who deal so treacherously?
Jer 12:2  You have planted them, yes, they have taken root; They grow, yes, they bear fruit. You are near in their mouth But far from their mind.
Jer 12:3  But You, O LORD, know me; You have seen me, And You have tested my heart toward You. Pull them out like sheep for the slaughter, And prepare them for the day of slaughter.
Jer 12:4  How long will the land mourn, And the herbs of every field wither? The beasts and birds are consumed, For the wickedness of those who dwell there, Because they said, "He will not see our final end."

(Jer 12:5)  "If you have run with the footmen, and they have wearied you, Then how can you contend with horses? And if in the land of peace, In which you trusted, they wearied you, Then how will you do in the floodplain of the Jordan? [ see Jamieson, Faucet and Brown commentary ]
What happens when "all hell brakes loose"... ? HOW will we live?
ARE WE READY TO RUN WITH THE HORSES?

 THE MAN IN THE ARENA
                                          Excerpt from the speech "Citizenship In A Republic"
                                          delivered at the Sorbonne, in Paris, France on 23 April, 1910
                                          download PDF of complete speech

It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat.
 http://www.theodore-roosevelt.com/trsorbonnespeech.html

(Col 1:23)  if indeed you continue in the faith, grounded and steadfast, and are not moved away from the hope of the gospel which you heard, which was preached to every creature under heaven, of which I, Paul, became a minister.
(Col 1:19)  For it pleased the Father that in Him all the fullness should dwell,
(Col 1:20)  and by Him to reconcile all things to Himself, by Him, whether things on earth or things in heaven, having made peace through the blood of His cross.

Heb 10:30  For we know Him who said, "VENGEANCE IS MINE, I WILL REPAY," says the Lord. And again, "THE LORD WILL JUDGE HIS PEOPLE."
Heb 10:31  It is a fearful thing to fall into the hands of the living God.
Heb 10:32  But recall the former days in which, after you were illuminated, you endured a great struggle with sufferings:
Heb 10:33  partly while you were made a spectacle both by reproaches and tribulations, and partly while you became companions of those who were so treated;
Heb 10:34  for you had compassion on me in my chains, and joyfully accepted the plundering of your goods, knowing that you have a better and an enduring possession for yourselves in heaven.
Heb 10:35  Therefore do not cast away your confidence, which has great reward.
Heb 10:36  For you have need of endurance, so that after you have done the will of God, you may receive the promise:
Heb 10:37  "FOR YET A LITTLE WHILE, AND HE WHO IS COMING WILL COME AND WILL NOT TARRY.
Heb 10:38  NOW THE JUST SHALL LIVE BY FAITH; BUT IF ANYONE DRAWS BACK, MY SOUL HAS NO PLEASURE IN HIM."
Heb 10:39  But we are not of those who draw back to perdition, but of those who believe to the saving of the soul.

Outliers: The Story of Success by Malcolm Gladwell; 10,000 HOURS...

(1Co 9:24)  Do you not know that those who run in a race all run, but one receives the prize? Run in such a way that you may obtain it.
(1Co 9:25)  And everyone who competes for the prize is temperate in all things. Now they do it to obtain a perishable crown, but we for an imperishable crown.
Paul realizes HE HAD TO DO THIS... to avoid  becoming disqualified.

(Heb 5:12)  For though by this time you ought to be teachers, you need someone to teach you again the first principles of the oracles of God; and you have come to need milk and not solid food.
(Heb 5:13)  For everyone who partakes only of milk is unskilled in the word of righteousness, for he is a babe.
(Heb 5:14)  But solid food belongs to those who are of full age, that is, those who by reason of use have their senses exercised to discern both good and evil.

(Heb 6:1)  Therefore, leaving the discussion of the elementary principles of Christ, let us go on to perfection, not laying again the foundation of repentance from dead works and of faith toward God,

  A MINDSET OF GROWTH.
(2Pe 3:14)  Therefore, beloved, looking forward to these things, be diligent to be found by Him in peace, without spot and blameless;
(2Pe 3:15)  and consider that the longsuffering of our Lord is salvation—as also our beloved brother Paul, according to the wisdom given to him, has written to you,
(2Pe 3:16)  as also in all his epistles, speaking in them of these things, in which are some things hard to understand, which untaught and unstable people twist to their own destruction, as they do also the rest of the Scriptures.

(2Pe 3:17)  You therefore, beloved, since you know this beforehand, beware lest you also fall from your own steadfastness, being led away with the error of the wicked;
(2Pe 3:18)  but grow in the grace and knowledge of our Lord and Savior Jesus Christ. To Him be the glory both now and forever. Amen.
(Luk 21:19)  By your patience possess your souls.
(Luk 21:19)  By your endurance you will protect your lives." ISV