Let Adolf Schlatter answer that for you:

There is no gift or power which the apostolic documents do not ascribe to baptism.

– Theologie des NT, II, 495.


Stott on 1 John 2:24:

“Christian theology is anchored not only to certain historical events, culminating in the saving career of Jesus, but to the authoritative apostolic witness to, and interpretation of, these events. The Christian can never weigh anchor and launch out into the deep of speculative thought. Nor can he forsake the primitive teaching of the apostles for subsequent human traditions” (emphasis mine).

— John Stott, The Letters of John (Downers Grove: IVP Academic, 2009), 116.

“No one can become and remain a theologian unless he is compelled again and again to be astonished at himself. . .[he must ask] ‘Who am I to be a theologian?'” —  Karl Barth, Evangelical Theology: An Introduction (Grand Rapids: Eerdmans, 1992), 71.