Deuteronomy 9:24

Verse 24. To know you. When Moses slew the Egyptian, and would have pacified two of his contending brethren, they refused to receive his mediation; so also, when he returned from Madian, to rescue them from slavery, they presently began to murmur against him, and continued to do so frequently for 40 years. Bible.—Septuagint refers this to God, “from the day that he was known to you,” and received you for his peculiar people. Exodus 12:25.