Behold again the reward is spiritual. Now He here calls “pure,” either those who have attained unto all virtue, and are not conscious to themselves of any evil; or those who live in temperance. For there is nothing which we need so much in order to see God, as this last virtue. Wherefore Paul also said, “Follow peace with all men, and holiness, without which no man shall see the Lord.” He is here speaking of such sight as it is possible for man to have.