Dogs are pack animals. They need to know that you will protect and care for them as the pack leader.
When you speak now your dog only hears only noise. If you lived in a household where the other members spoke a foreign language that you did not understand, it would be challenging to bond with them.
Teach your dog words, and there is understanding and not gibberish.
It has been scientifically proven that dogs can see two-dimensional images, such as a page in a book. So, teach your do words for the "ultimate bond.”