It is the work of the youth to make advancement day by day. Peter says, “Add to your faith virtue; and to virtue knowledge; and to knowledge temperance; and to temperance patience; and to patience godliness; and to godliness brotherly kindness; and to brotherly kindness charity. For if these things be in you, and abound, they make you that ye shall neither be barren nor unfruitful in the knowledge of our Lord Jesus Christ.” MYP 45.2
All these successive steps are not to be kept before the mind's eye, and counted as you start; but fixing the eye upon Jesus, with an eye single to the glory of God, you will make advancement. You cannot reach the full measure of the stature of Christ in a day, and you would sink in despair could you behold all the difficulties that must be met and overcome. You have Satan to contend with, and he will seek by every possible device to attract your mind from Christ. MYP 45.3