That seeing: Rather, as ινα: strong:G2443 frequently denotes, "So that seeing they see, and do not perceive, and hearing they hear, and do not understand," etc. The expression appears to be proverbial; and relates to those who might see what they now overlook through inattention and folly. See the parallel texts. Deuteronomy 29:4; Isaiah 6:9-10, Isaiah 44:18; Jeremiah 5:21; Matthew 13:14-15; Luke 8:10; John 12:37-41; Acts 28:25-27; Romans 11:8-10
be converted: Jeremiah 31:18-20; Ezekiel 18:27-32; Acts 3:19; 2 Timothy 2:25; Hebrews 6:6