Charles Spurgeon Commentary 1 Peter 1:14-15

"as children of obedience, not fashioning yourselves according to your former lusts in [the time of] your ignorance: but like as he who called you is holy, be ye yourselves also holy in all manner of living;" — 1 Peter 1:14-15 (ASV)

As obedient children, not fashioning yourselves according to the former lusts in your ignorance: But as he who has called you is holy, so be holy in all manner of conversation;

Remember that you can never be really whole until you are holy, for holiness is spiritual sanity; it is the curing of the mind and heart from the disease which sin brought upon them.