See Definition for 1781
See Definition for 2753
See Definition for 3853
See Definition for 5021
1781 - to enjoin, is used esp. of those whose office or position invests them with claims, and points rather to the contents of the command, cf "our instruction"
2753 - to command, designates verbal orders, coming usually from a superior
3853 - to charge, is used esp. of the order of a military commander to his troops
5021 - assign a post to, with a suggestion of duties connected with it, often used of military appointments
3853 differs from 1781 in denoting fixed and abiding obligations rather than specific or occasional instructions, duties arising from the office rather than coming from the personal will of a superior.