"(You will not) fear being overtaken," that Pharaoh will overtake you, "nor be afraid," of drowning before you.
﴿لَا تخَاف دركا﴾ أَنْ يُدْرِكَكَ فِرْعَوْنُ ﴿وَلا تَخْشَى﴾ الْغَرق أمامك