Blessed is the man that endureth temptation: for when he is tried, he shall receive the crown of life, which the Lord hath promised to them that love him. Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man: But every man is tempted, when he is drawn away of his own lust, and enticed. Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death. Do not err, my beloved brethren.
We have already established that we will encounter trials/temptations in life (see here), but in today's reading, we learn about a promise for enduring those temptations. We will be blessed/happy and we will receive the crown of life!
In contrast, we also learn what will occur if we don't endure. Temptation itself is not sinful, but if we give in to temptation, it brings sin and ultimately death. When we give in, it is easier to fall.
We are admonished to "Do not err, my beloved brethren."
"err"--Greek word is planao, which means go astray, be deceived, wander.
Do not wander towards temptation or go astray after it!