וַיֹּ֣אמֶר אֱלֹהִ֗ים אֲבָל֙ שָׂרָ֣ה אִשְׁתְּךָ֗ יֹלֶ֤דֶת לְךָ֙ בֵּ֔ן וְקָרָ֥אתָ אֶת־שְׁמ֖וֹ יִצְחָ֑ק וַהֲקִמֹתִ֨י אֶת־בְּרִיתִ֥י אִתּ֛וֹ לִבְרִ֥ית עוֹלָ֖ם לְזַרְע֥וֹ אַחֲרָֽיו׃
Mas Elohim disse: "Não, Sara, tua esposa, te dará à luz um filho, e chamarás o seu nome de Yitzchak, e estabelecerei a Minha aliança com ele como uma aliança eterna para a sua descendência depois dele.
Akeidat Yitzchak
The very idea of Israel's selection as G-d’s pilot project is based on the fact that it is the part of the human species which has preserved more of the original tzelem elokim, Divine image, than any other section of humanity. G-d has described the relative standing of the Jewish people among the nations, as similar to the standing of humans vis a vis the animal kingdom. In other words, the nations of the world are aware of our dominance and are afraid of us. This is so at least as long as Jews deserve such status due to their moral superiority. We are described as treating our Canaanite adversaries as if they were "our bread" to be consumed by us (Numbers 14,9). Prior to tackling Goliath, David explains to the startled Saul that his experiences with the lion and the bear, both of which he had slain, convinced him of his chance against the uncircumcised blasphemer (Samuel I Chapter 17). David rejected armour and sword, since his victory over the beasts had also not been due to external weapons. David's enquiry about the type of reward the slayer of Goliath would receive is based on the assumption that killing an uncircumcised blasphemer such as Goliath cannot in itself be much of a heroic deed, since the "laws of nature" almost guaranteed victory to any good Jew, and the risk involved was not of the kind which would call for a major reward. The reputation acquired by such deed should in itself suffice as reward. Obviously, David's companions did not understand his meaning, as seen from their response to David's enquiry. However, Saul's advisors sensed David's meaning when David said "let no adam have fear of him." The adam David referred to was the kind of a person who had preserved his tzelem elokim, Divine image. Such a person would not have reason to fear the Philistine. Baba Metzia 114 teaches, "Israel is referred to as adam; the nations of the world do not qualify for such appellation." Upon being challenged by Saul, David detailed past events in his life as proof for his confidence. He attributed his success to G-d, and was confident that the same G-d would grant him success against Goliath. "The Philistines will be no better than one of those beasts." To emphasize our point, the book of Samuel relates that David rejected the armor, to show that his superiority did not stem from such sources, but was in the nature of things. After the battle (Samuel I 17,55), Saul wanted to know, "Who is this lad?" a strange request indeed, since his family status etc. had been common knowledge. David had performed as a regular harpist at Saul's Court (Samuel I 16,19). At that time, Saul had begun to wonder about David's ultimate destiny. In view of the fact that his own son Jonathan had performed deeds of valor of a similar nature previously, we can understand the love and mutual attraction that existed between David and Jonathan. The two shared the distinction of being adam in the full sense of the word. This is what our sages call "a love which is not based on something tangible, something material" (Avot 5, 16). The love is for the basic qualities in the other person. When the Torah says "Love your fellow man like yourself," the "yourself" referred to is that same human quality (Leviticus 19,18).