Act 1, Scene 3

"Shylock, albeit I neither lend nor borrow

By taking nor by giving of excess,

Yet to supply the ripe wants of my friend,

I’ll break a custom."

Antonio's personal policy is to never lend or borrow with interest

Antonio does not charge any interest on loans. This is a point of contention between him and Shylock.

who is Jacob? Explain the reference to jacob

Earlier Shylock said Antonio is a good man what do bassanio and Shylock mean by good man

Antonio tells shylock that he will not lend or borrow money by taking or giving excess or advantage or interest. But he will break the custom for satisfying the needs of Bassaino