What does the Bible say about God's special knowledge of His people?

In Amos 3:2, God declares, 'You only have I known of all the families of the earth.' This signifies not merely God's omniscience but a unique, covenantal relationship with Israel, indicating that they were chosen as His special people among all nations. This special knowledge involves God's favor and intimate understanding, setting His people apart for a purpose in redemption history. He established a covenant with them, revealing His statutes and judgments, unlike His dealings with other nations, as seen in Psalm 147:19-20.