There are different aspects to the promise to Abraham, all of which can be used to display different aspects of the Gospel and shadow pictures of Messiah.
All families were to be blessed in him (Genesis 12:3) – Shadow pictures in people
All nations were to be blessed in him (Genesis 17:4-7; 22:18) – Shadow pictures in nations/history
In Hebrew, Psychology, is translated as תורת–הנפש, ‘Torat ha’nefesh’, the ‘Torah/law’ of the soul.
Gen 2:7 And Jehovah God formed the man out of dust from the ground, and blew into his nostrils the breath of life; and man became a living soul (נפש ‘nephesh’).
Psychology, is the study of mankind. The way in which our brains work, our emotions, human history, genealogy, religions, language, culture and all human institutions point to Messiah.
The word נפש ‘nephesh’ means the whole of a person.
The other word in Hebrew that is translated as ‘soul’ is נשמה ‘neshama.’
נשמ ‘nasham’ comes from the root שם ‘shem’ which means ‘name/character’…The נשמה ‘neshama’ of man is the ‘breathe’ of the Almighty or His Name/Character breathed into man to give Him life, which makes him a נפש ‘nephesh’ a living soul.
His Name is His Word
Rev 19:13 And he was clothed with a vesture dipped in blood: and his name is called The Word of God.
Joh 1:14 And the Word was made flesh, and dwelt among us, (and we beheld his glory, the glory as of the only begotten of the Father,) full of grace and truth.
Within each human the image/name of the Almighty was placed…
In My Flesh I See God pg 8
“Philosophy is man’s knowledge of himself, so that through the evidence of the divine wisdom that is manifest within himself he will come to recognize the Creator; as Job said, ‘In my flesh I see God’ (Job 19:26)”
The Name of of God is even embedded in human DNA. For more on this see the study Shadows of Messiah – DNA.
Man is a shadow picture of the Most High
Gen 1:26 And God said, let Us make man in Our image, according to Our likeness; and let them rule over the fish of the sea, and over the birds of the heavens, and over the cattle, and over all the earth, and over all the creepers creeping on the earth.
Gen 1:27 And God created the man in His own image; in the image of God He created him. He created them male and female.