“It is important to have assurance in the properness of Jesus of Nazareth.” - G.S

Deuteronomy 28:58 KJV

[58] If thou wilt not observe to do all the words of this law that are written in this book, that thou mayest fear this glorious and fearful name, THE Lord THY GOD;

And thy life shall hang in doubt before thee; and thou shalt fear day and night, and shalt have none assurance of thy life: In the morning thou shalt say, Would God it were even! and at even thou shalt say, Would God it were morning! for the fear of thine heart wherewith thou shalt fear, and for the sight of thine eyes which thou shalt see. And the Lord shall bring thee into Egypt again with ships, by the way whereof I spake unto thee, Thou shalt see it no more again: and there ye shall be sold unto your enemies for bondmen and bondwomen, and no man shall buy you.

Isaiah 32:17-20 KJV

And the work of righteousness shall be peace; and the effect of righteousness quietness and assurance for ever. [18] And my people shall dwell in a peaceable habitation, and in sure dwellings, and in quiet resting places; [19] When it shall hail, coming down on the forest; and the city shall be low in a low place. [20] Blessed are ye that sow beside all waters, that send forth thither the feet of the ox and the ass.

Acts 17:31-34 KJV

Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead. [32] And when they heard of the resurrection of the dead, some mocked: and others said, We will hear thee again of this matter. [33] So Paul departed from among them. [34] Howbeit certain men clave unto him, and believed: among the which was Dionysius the Areopagite, and a woman named Damaris, and others with them.

Colossians 2:2-7 KJV

That their hearts might be comforted, being knit together in love, and unto all riches of the full assurance of understanding, to the acknowledgement of the mystery of God, and of the Father, and of Christ; [3] In whom are hid all the treasures of wisdom and knowledge. [4] And this I say, lest any man should beguile you with enticing words. [5] For though I be absent in the flesh, yet am I with you in the spirit, joying and beholding your order, and the stedfastness of your faith in Christ. [6] As ye have therefore received Christ Jesus the Lord, so walk ye in him: [7] Rooted and built up in him, and stablished in the faith, as ye have been taught, abounding therein with thanksgiving.

1 Thessalonians 1:5-7 KJV

For our gospel came not unto you in word only, but also in power, and in the Holy Ghost, and in much assurance; as ye know what manner of men we were among you for your sake. [6] And ye became followers of us, and of the Lord, having received the word in much affliction, with joy of the Holy Ghost: [7] So that ye were ensamples to all that believe in Macedonia and Achaia.

Hebrews 6:11-12 KJV

And we desire that every one of you do shew the same diligence to the full assurance of hope unto the end: [12] That ye be not slothful, but followers of them who through faith and patience inherit the promises.

Hebrews 10:22 KJV

Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.

In the last days:

for men shall be lovers of themselves, lovers of money, boasters, proud, evil-speakers, to parents disobedient, unthankful, unkind, without natural affection, implacable, false accusers, incontinent, fierce, not lovers of those who are good, traitors, heady, lofty, lovers of pleasure more than lovers of God, having a form of piety, and its power having denied; and from these be turning away, for of these there are those coming into the houses and leading captive the silly women, laden with sins, led away with desires manifold, always learning, and never to a knowledge of truth able to come, and, even as Jannes and Jambres stood against Moses, so also these do stand against the truth, men corrupted in mind, disapproved concerning the faith; but they shall not advance any further, for their folly shall be manifest to all, as theirs also did become.