"And make him share in my task." This is a supplication from Moses to his Lord to make him a partner in his affair.
﴿وأشركه فِي أَمْرِي﴾ دَعَاءٌ مِنْ مُوسَى لِرَبِّهِ أَنْ يشركهُ فِي أمره.