on account of which cause I indeed suffer these things: but I am not ashamed; for I know whom I have believed, and am persuaded that he is able to stand guard over that which is committed unto me unto that day.

stand guard over the beautiful deposit through the Holy Ghost who dwells in us.

Think over the things I am saying [grasp their application], for the Lord will grant you insight and understanding in everything.

Remind the people of these facts, and solemnly charge them in the presence of God to avoid petty controversy over words, which does no good, and [upsets and undermines and] ruins [the faith of] those who listen.

Unghostly and vain voices, pass over. For they shall increase unto greater ungodliness,

But have nothing to do with foolish and ignorant speculations [useless disputes over unedifying, stupid controversies], since you know that they produce strife and give birth to quarrels.