Christ is not wisdom and righteousness only to His people, but sanctification also

“Christ is not wisdom and righteousness only to His people, but sanctification also. Men sometimes try to make themselves holy first of all, and sad work they make of it. They toil and labour, and turn over new leaves, and make many changes; and yet, like the woman with the issue of blood, before she came to Christ, they feel “nothing bettered, but rather worse.” (Mark v. 26.) They run in vain, and labour in vain; and little wonder, for they are beginning at the wrong end. They are building up a wall of sand; their work runs down as fast as they throw it up. They are baling water out of a leaky vessel: the leak gains on them, not they on the leak. Other foundation of “holiness” can no man lay than that which Paul laid, even Christ Jesus. “Without Christ we can do nothing.” (John xv. 5.) It is a strong but true saying of Traill’s, “Wisdom out of Christ is damning folly—righteousness out of Christ is guilt and condemnation—sanctification out of Christ is filth and sin—redemption out of Christ is bondage and slavery.” Do you want to attain holiness? Do you feel this day a real hearty desire to be holy? Would you be a partaker of the Divine nature? Then go to Christ.”
― J.C. Ryle