FOMC has been verbally raising rates for more than a year, in other words, as you point out, they can influence markets with talk/power
Markets tend to look at projection of target rates vs. a single 1/4 point basis change
Lower rates signify deflationary cycles, Higher rates signify inflation cycles, historically gold has been safe haven with inflation, how markets react if/when there is a change in fed funds rate trajectory is anyone's best guess, my assumption, gold could rise in the face of rising rates
Why gold is rising in the current deflationary cycle of recent, because global economic trade data is falling off a cliff, and CB policy confidence is crumbling