“The heart is the ‘home of the personal life’, hence a man is designated, according to his heart, wise (1 Ki 3:12, etc.), pure (Ps 24:4; Mt 5:8, etc.), upright and righteous (Gen 20:5, 6; Ps 11:2; 78:72), pious and good (Lu 8:15), etc. In these and such passages the word ‘soul’ could not be substituted for ‘heart’. The heart is also the seat of the conscience (Ro 2:15). It is naturally wicked (Ge 8:21), and hence it contaminates the whole life and character (Mt 12:34; 15:18; comp. Ec 8:11; Ps 73:7). Hence the heart must be changed, regenerated (Eze 36:26; 11:19; Ps 51:10-14), before a man can willingly obey God. Obedience begins in the heart.

 

Brathwaite, Dr. Dale. Plain, Plain Talk on Sex (p. 36). Life Expressions Publishing. Kindle Edition.