RobH_en_tn/jhn/18/20.md

I have spoken openly to the world

You may need to make explicit that the word "world" is a metonym for those people who had heard Jesus teach. Here the exaggeration "the world" emphasizes that Jesus has spoken openly. (See: rc://en/ta/man/translate/figs-explicit and rc://en/ta/man/translate/figs-metonymy and rc://en/ta/man/translate/figs-hyperbole)

where all the Jews come together

Here "all the Jews" is an exaggeration that emphasizes that Jesus spoke where anyone who wanted to hear him could hear him. (See: rc://en/ta/man/translate/figs-hyperbole)