The question of what language Jesus was speaking is one that has been debated for centuries. While the Bible does not provide an exact answer, several theories have been proposed to explain the language Jesus may have used in his day-to-day life.
Hebrew
The most popular theory is that Jesus spoke Hebrew, an ancient language that was commonly used in the region during the time of Jesus. The Old Testament of the Bible was written in Hebrew, and it is likely that Jesus and his disciples were familiar with the language. Additionally, Hebrew was the language of the Jewish people and Jesus was Jewish, so it is possible that he used the language as his primary form of communication.
Aramaic
Aramaic is another possible language Jesus spoke. It was the official language of the region during the time of Jesus and was spoken by many of the people in the area. The New Testament mentions Aramaic several times, suggesting that Jesus and his followers would have been familiar with it. Additionally, several of Jesus' sayings were originally recorded in Aramaic, suggesting that he often spoke the language.
Greek
Greek was also a common language in the region during the time of Jesus and was used widely by many of the people living in the area. Since the New Testament was written in Greek, it is likely that Jesus and his followers were familiar with the language. Additionally, many of the people Jesus interacted with would have spoken Greek, so it is possible that he used it as a form of communication.
Ultimately, it is impossible to say with absolute certainty what language Jesus spoke. While the Bible does not provide an exact answer, it is likely that Jesus was familiar with Hebrew, Aramaic, and Greek, and may have used any of these languages in his day-to-day life.