When nearly precise rabbinic parallels to stories and sayings in the Gospels exist, it may indicate that the Gospels are preserving traditions of the early Jesus movement and, perhaps, the historical Jesus.
In Yohanan the Immerser Demands Repentance John the Baptist challenges his audience, which had gone through all the trouble of going out to the Jordan River to receive his baptism, to accept his even more important advice: to repent of their evil deeds and imitate the faithfulness of Abraham their father.
The growing value placed on charity in the first century C.E. cannot be overstated. As a new sensitivity developed within Judaism that challenged the compensatory “blessings and curses” paradigm of the Hebrew Bible (cf. Deut. 28) as a basis to serve God, so there was a shifting emphasis towards altruistic love embodied in the Levitical commandment, “…and you shall love your neighbor as yourself (וְאָהַבְתָּ לְרֵעֲךָ כָּמוֹךָ אֲנִי יי; Lev. 19:18).”
In the modern Hebrew translation that was published by the Israeli Bible Society in 1976, and revised in 1991 and 1995, Matthew 5:19 was rendered “…ha-mitsvot ha-ketanot…katon yikare’…gadol yikare’…” (the small commandments…small [smaller, smallest] he will be called…big [bigger, biggest] he will be called). It is highly probable, however, that in this context Jesus was speaking about mitsvot kalot (light commandments) and not about mitsvot ketanot (little or small commandments).
From the early centuries of the Christian era to our day, expositors of the Gospels have struggled with Jesus’ teachings on the Kingdom of Heaven, particularly with their temporal dimension. Will the Kingdom of Heaven appear one day in the future when the Son of Man suddenly comes? Or, has it been germinating like a seed with much potential for growth? Perhaps as C. H. Dodd suggested, it should be described as both realized and eschatological: germinal in reference to the past (and present), but explosive in regard to its coming manifestation.