He notices that you stumble occasionally. Out of concern for your safety, he extends his hand to help you over a particularly dangerous spot. Would you refuse his help? Of course not! Your safety is at stake.
وإذ يلاحظ انك تتعثر احيانا ،‏ يمدّ يده لمساعدتك على عبور مكان خطر جدا حرصا منه على سلامتك .‏