Jesus’ public teaching is saturated with Jewish categories: Torah, Sabbath, temple, purity, kingdom of God, Son of Man, David’s son, Isaiah, Daniel, Deuteronomy, and the Shema. His disputes are with Pharisees, Sadducees, scribes, priests, and synagogue crowds inside Israel’s own story.
Similarities between moral sayings do not prove dependence. Many traditions can condemn greed, praise mercy, or call people to humility. What needs explanation is the whole pattern of Jesus’ ministry, death, resurrection proclamation, and early worship, and that pattern is rooted in Second Temple Judaism.