Most Relevant Verses
I appreciate and commend you because you always remember me in everything and keep firm possession of the traditions (the substance of my instructions), just as I have [verbally] passed them on to you.
So then, brethren, stand firm and hold fast to the traditions and instructions which you were taught by us, whether by our word of mouth or by letter.
Now we charge you, brethren, in the name and on the authority of our Lord Jesus Christ (the Messiah) that you withdraw and keep away from every brother (fellow believer) who is slack in the performance of duty and is disorderly, living as a shirker and not walking in accord with the traditions and instructions that you have received from us.
He said to them, Therefore every teacher and interpreter of the Sacred Writings who has been instructed about and trained for the kingdom of heaven and has become a disciple is like a householder who brings forth out of his storehouse treasure that is new and [treasure that is] old [the fresh as well as the familiar].
And now let me remind you [since it seems to have escaped you], brethren, of the Gospel (the glad tidings of salvation) which I proclaimed to you, which you welcomed and accepted and upon which your faith rests, And by which you are saved, if you hold fast and keep firmly what I preached to you, unless you believed at first without effect and all for nothing. For I passed on to you first of all what I also had received, that Christ (the Messiah, the Anointed One) died for our sins in accordance with [what] the Scriptures [foretold],