TCR 151 - What is believing in the Lord?

TCR 151
Believing in the Lord
is not just a matter of acknowledging Him,
but includes keeping His commandments.
Merely to acknowledge Him
only demands some thought on the part of the understanding,
but to keep His commandments
requires acknowledgment on the part of the will, too.
The human mind is made up of the understanding and the will.
It is the function of the understanding to think,
of the will to act.
So as long as a person's acknowledgment
is merely in thought on the part of the understanding,
he approaches the Lord with no more than half his mind;
but when he acts,
then he does so with his whole mind,
and that is what believing is.