His strong desire to see the Hebrews set free was manifested by his defending an Israelite slave who was being abused.
كَمَا آمَنَ بِأَنَّ ٱللهَ سَيُحَرِّرُ شَعْبَهُ ،‏ إِنَّمَا لَمْ يَعْرِفْ مَتَى سَيَفْعَلُ ذلِكَ .‏