I just happened to notice that there are different versions of Isaiah 43:9.
The American King James Bible:
Let all the nations be gathered together, and let the people be assembled: who among them can declare this, and show us former things? let them bring forth their witnesses, that they may be justified: or let them hear, and say, It is truth.
The Douay-Rheims Bible:
All the nations are assembled together, and the tribes are gathered: who among you can declare this, and shall make us hear the former things? let them bring forth their witnesses, let them be justified, and hear, and say: It is truth.
More complete set of translations here.