Only one way, only one name, only one God, only one Lord, only one Mediator. The claim is exclusive, and the implication inescapable. What is genuinely unique has universal significance and must be universally made known…
Thus uniqueness and universality belong together.
It is because God has super-exalted Jesus, and given him the unique name of ‘Lord’, towering above every other name, that every knee must bow to him. It is because Jesus Christ is the only Savior, that we are under obligation to proclaim him everywhere. The ‘inclusivism’ of the mission is precisely due to the ‘exclusivism’ of the Mediator.
In addition, universal authority over the nations has been given to him; that is why he commissions us to go and disciple the nations.
– John Stott, The Contemporary Christian
(HT: Trevin Wax)