Ephesians 4:22-24 - Experiencing the New Life in Christ.

So get rid of your old self, which made you live as you used
to--the old self that was being destroyed by its deceitful desires.
Your hearts and minds must be made completely new, and you must put
on the new self, which is created in God's likeness and reveals
itself in the true life that is upright and holy. Eph 4:22-24 (TEV)

The old self . . . the new self; the old is what we were before
we were saved, and the new is the new life we have in Christ.
[Ryrie SB]

Since the new self is created, it cannot refer to the indwelling
Christ, but rather to the kind of person he produces in the new believer
- - this is a new way of life that one not only "puts on"
positionally at conversion but is also urged to "put on" experientially as a
Christian.  [NIV SB]

Our old way of life before we believed in Christ is completely
in the past. We should put it behind us like old clothes to be
thrown away. This is both a once-for-all decision when we decide to
accept Christ's gift of salvation and also a daily conscious
commitment. We are not to be driven by desire and impulse. We must put on
the new role, head in the new direction, and have the new way of
thinking that the Holy Spirit gives. [Life Application SB]

The grace of Christ is essential every day, every hour. Unless
it is with us continually, the inconsistencies of the natural heart
will appear and the life will present a divided service. The
character is to be full of grace and truth. Wherever the religion of
Christ works, it will brighten and sweeten every detail of life with
more than an earthly joy and a higher than earthly peace.  6BC1117

Then put off the old self which is corrupt and deceitful and
full of lust.  Determine to live totally for Him.  Begin each day
with a commitment to live for Christ.  This is what it means to put
on the new self, to be a new person in Christ, one who has been
re-created in uprightness and holiness. Eph 4:22-24 (CWB)