John 5:46 are powerful words spoken by our Redeemer Yeshua (Jesus). In John 14:24, He confirmed that the Word He was teaching was not His own but "His who sent me." This is in fulfillment of YHWH's promise to Moses in Deuteronomy 18:18 that someday He would raise up a prophet like him from among his people to speak these words (His Law). Therefore, the people were to store up the Word in their heart and teach it diligently to their children in order to recognize this promised Prophet. Peter confirmed in Acts 3:22 that this was referencing Yeshua and Stephen also confirmed it in Acts 7:37. Moses, an earthly man, warned us to delight in the Torah of YHWH and now we have been warned from Heaven (Hebrews 12:25)... will we finally believe Moses' writings and consequently finally believe the teachings of Yeshua? May it be so! May He "open your mind to understand the scriptures" so that "beginning with Moses and the Prophets", He can fully reveal Himself to you! (Luke 24:27, 32 and 44-45). God bless you!