All this happened, more or less.

"What Jesus really contributed was a purification of the old Law through the elimination of those precepts that still required hatred for one's enemies, contempt for strangers, and vengeance for personal offenses."

The Life of Jesus, by Marcello Craveri. p. 187

cf. Buddha & Socrates (p 188).

Is it related to different stages of development, e.g. early survival vs distribution? The Hebrews of the early Torah had to separate themselves from the pagan world. The Hebrews of the diaspora and the early Christians had to cope with a much bigger world. It is much easier to create new connections with love, rather than formal interfaces.

And the Lord appeared to him by the terbinth of Mamre, as he sat in the tent door in the heat of the day; and he raised his eyes and looked, and , lo, three men stood by him; and when he saw them, he ran to meet them from the tent door, and bowed himself to the ground, and said, My Lord, if now I have found favour in thy sight, pass not away, I pray thee, from thy servant; let a little water, I pray you, be fetched, and wash your feet, and rest yourselves under the tree; and I will fetch a morsel of bread, and comfort your hearts; after that you shall pass on: seeing that you are come to your servant. And they said, So do, as thou hast said.

..And he took butter , and milk, and the calf which he had dressed, and set it before them; and he stood by them under the tree, and they ate. And they said to him, Where is Sara thy wife? and he said, Behold, in the tent. And he said, I will certainly return to thee at this season; and, lo, Sara thy wife shall have a son. And Sara heard in the tent door, which was behind him.

another communication experiment. first the angel, now the three men.

And God said to Avraham, As for Saray thy wife, thou shalt not call her name Saray, but Sara shall her name be. And I will bless her, and give thee a son also of her: and I will bless her, and she shall be a mother of nations; kings of peoples shall issue from her. Then Avraham fell upon his face, and laughed, and said in his heart, Shall a child be born to him that is a hundred years old? and shall Sara, that is ninety years old, give birth? And Avraham said to God, O that Yishma'el might live before thee! And God said, Sara thy wife shall bear thee a son indeed; and thou shalt call his name Yizhaq: and I will establish my covenant with him for an everlasting covenant, and with his seed after him. And as for Yishmae'el I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceeedingly; twelve princes shall he beget, and I will make him a great nation. But my covenant will I establish with Yizhaq, whom Sara shall bear to thee at this time next year.

And they said, Come, let us build us a city and a tower, whose top may reach to heaven; and let us make us a name, lest we be scattered abroad upon the face of the whole earth. And the Lord said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be withheld from them, which they have schemed to do. Come, let us go down, and there confound their language, that they may not understand one another's speech. So the Lord scattered them abroad from there upon the face of all the earth: and they seased to build the city.

what is there to withhold?