Nephi understood that multiple witnesses were crucial to authenticate his teachings. He therefore enlisted prophets such as Isaiah and his own brother Jacob, and evidently other allies such as Ezekiel and Zechariah, as witnesses to his teachings concerning the Messiah and the redemption of Israel. In doing this, Nephi was keeping in harmony with biblical law, which stipulated the need for witnesses (both mortal and divine) to properly execute legal decisions and authenticate religious claims (cf. Deuteronomy 17:6; 19:15; Matthew 18:16; 2 Corinthians 13:1; Hebrews 10:28; 1 Timothy 5:19).