My son, let them [wisdom  and understanding] not vanish from your sight;

Keep sound wisdom and discretion,

22 So they will be life to your soul

And adornment to your neck.

23 Then you will walk in your way securely

And your foot will not stumble (Prov. 3:21-23).

Sound wisdom and discretion are tightly tied together. If you walk with discretion you will be secure and not stumble.