VaYikra 16:4

Verse 4. Also such purification is effected by truths from good, that is, by the truths of the exterior natural; by the doctrine of the conjunction of truth with good externally; by the common bond conjoining truths with good internally; and by the intelligence of truth inmostly; for by these man is made pure and holy when he does the work of repentance by the application of external truths to life.