In Lekh-Lekha we meet the two sides of Avraham’s personality: a prophet who merits divine revelations, receiving promises and a covenant from God; yet he is also a wealthy, down-to-earth man who fights against kings in the region and is victorious.
Avraham’s increasing wealth and social standing do not lessen his spirituality. Indeed, for each step he takes up the ladder of material success, the Torah describes the matching spiritual step he takes. After God appears to him, Avraham builds an altar (12:7), returning to it and calling out in God’s name (13:4). He builds an additional altar (13:18) and the priests of the surrounding nations bless God (14:19).
We can see expressions of Abraham’s kindness in the two facets of his personality, in the practical as well as in the spiritual sphere. He serves and fears God and, as a practical man, he spreads God’s name far and wide wherever he travels. He remains a humble, modest person despite his material wealth, and tries to influence his surroundings without expectation of any personal gain. Avraham says to the King of Sodom: "I raise my hand to the Lord, the Most High God, Who possesses heaven and earth. Neither from a thread to a shoe strap, nor will I take from whatever is yours, that you should not say, 'I have made Avram wealthy’.”(14:23)
We would do well to emulate the dual nature of Abraham’s personality.