"wisdom" is treated as if it was able to speak for God. Alternate translation: "God in his wisdom said" or "God wisely said" (See: [[rc://en/ta/man/translate/figs-personification]])
"I will send prophets and apostles to my people." God had declared beforehand that he would send prophets and apostles to the ancestors of the Jewish audience to whom Jesus was speaking.
"my people will persecute and kill some of the prophets and apostles." God had declared beforehand that the ancestors of the Jewish audience to whom Jesus was speaking would persecute and kill the prophets and apostles.