Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect. Romans 12:2 (ESV)
The key method Paul underscores as the means to the transformed life is by the “renewal of the mind.” This means nothing more and nothing less than education. Serious education. In-depth education. Disciplined education in the things of God. It calls for a mastery of the Word of God. We need to be people whose lives have changed because our minds have changed.
Sproul, R. retrieve from https://www.ligonier.org/learn/articles/renewed-mind-transformed-life
And he said, “Jesus, remember me when you come into your kingdom.” And he said to him, “Truly, I say to you, today you will be with me in paradise.” Luke 23:42-43 (ESV)
How is it that under precisely the same circumstances one (criminal) is converted and (the other) remains dead in sins… the (same way) same sermon is heard by one (church-goer) with complete indifference… (yet) sends another (church-goer) home to pray and seek Christ.
Ryle, J. (1857) Expository Thoughts on the Gospels, Monergism Books, pg. 1079-80
Nation will rise against nation… This will be your opportunity to bear witness… By your endurance you will gain your lives. Luke 21:10-19 (ESV)
Let us cease to expect that missionaries and ministers will ever convert the world, and teach all mankind to love one another. They will do nothing of the kind. They were never intended to do it. They will call out a witnessing people who shall serve Christ in every land, but they will do no more. The bulk of mankind will always refuse to obey the Gospel. The nations will always go on quarrelling, wrangling, and fighting. The last days of the earth shall be its worst days. The last war shall be the most fearful and terrible war that ever desolated the earth.
Ryle, J. (1857) Expository Thoughts on the Gospels, Monergism Books, pg. 1115