Psalm 111:6 He hath shewed his people the power of his works, That he may give them the heritage of the heathen.
Maybe the reason we do not have His power to the extent we wish is that we do not the right motives. What he desires is that we take the heathen for our inheritance. That does not mean that we are to conquer them but to evangelize them. His power is not a selfish investment on our part but rather to empower us to lift high his name.