Variantly: "You have guided them in Your strength" — in the strength of the kingdom of the house of David, who are destined to assume the reign, "Your strength" being kingdom, viz. (Ibid. 21:2) "O L–rd, in Your strength the king will rejoice", and (I Samuel 2:10) "and He will give strength to his king."...
You Have Guided Them in Your Strength
Mekhilta Tractate Shirah 9:10