Colossians 2:3 in whom are hidden all the treasures of wisdom and knowledge.
Whether this refers to the gospel or to Christ Himself, we have all the treasures of wisdom and knowledge to hand – we just need to ask.
How do we ask? In prayers to God through Christ or by picking up our bibles and reading the gospel story!
When Christ promised us He would be here for all our needs, it was a promised He had already started in motion; we just did not know it yet.