The West Ham co-owner has been discussing the Argentine, as well as his side's record-breaking 16-year-old.
The 28-year-old has been linked with a move away from Upton Park - or at least other clubs being interested in him - by the Corriere Dello Sport.
But West Ham co-owner Gold feels Zarate will be given a chance by new boss Slaven Bilic, a stance he has previously intimated on Twitter.
He was also impressed with the Argentine's first-leg display against Lusitanos in Europa League qualifying.
Gold explained: "We also saw Mauro Zarate produce an impressive display last week. Unfortunately he picked up a slight injury which will keep him sidelined for a short period but he has his chance to show what he can do.
"The slate has been wiped clean and everyone has got their opportunity. Slaven is clearly saying to his players show me what you can do."
Meanwhile, Gold had plenty of good things to say about 16-year-old Reece Oxford, too.
He told the club's official site: "Reece Oxford also showed again why he is rated so highly. He went out and played in midfield and that shows the quality he has got that he is so versatile.
"He was then moved back into a defensive role and played superbly."
A big season for both?
Should West Ham indeed hold onto Zarate, a big season indeed lies ahead for the forward, who is yet to prove himself over a long period in terms of his fitness.
He is yet to be given an extended run, of course, which is something Bilic may well do. There is less pressure on Oxford considering his age but, as a record-breaker already, there will still be plenty of attention on the teenager this year.