He did not turn down David’s invitation because he felt inadequate to shoulder responsibility or because he wanted to enjoy a quiet life in retirement.
فَهُوَ لَمْ يَرْفُضْ دَعْوَةَ دَاوُدَ كَيْ يَتَجَنَّبَ ٱلْمَسْؤُولِيَّةَ أَوْ يَرْتَاحَ فِي آخِرِ أَيَّامِهِ .‏