Powerful moment from NBA player Meyers Leonard ... who choked backed tears while addressing a group of Jewish kids at a temple in Florida, as he explained his regret for using an anti-Semitic slur back in March.
The 29-year-old took the mic at Boca Raton Synagogue over the weekend ... and began by saying, "I owe everybody, truly, a sincere apology."
As we previously reported, the former Miami Heat player was playing "Call of Duty" on March 9 when he hurled the K-word at an opposing player. The session was being live-streamed on Twitch at the time.