Regarding your last sentence,  but who did Jesus send us out to, using the gifts that He gave us?

Well, let's take a look at what St Matthew says..

"...When they saw him, they worshiped [[note: more evidence that St Matthew concurred regarding the divinity of Jesus]], but they doubted. Then Jesus approached and said to them, “All power in heaven and on earth has been given to me. Go, therefore, and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit."

So that corrects your shortened point about St Matthew's passage.