Vick is closer to recovering from a hamstring injury but Foles has been the hot hand.
"In all honesty, in all fairness, how can you take a guy out of the game who's been playing so well?" Vick said. "I've been in this stage before, and I know what it's like. I understand the position that this team is in, and the one thing I never want to do is be a distraction or put our team or our coaches in a position where they feel like they're not doing the right thing or I feel like they're not doing the right thing.
"I trust what's going on, I enjoy being a part of it, I love the game of football in general. So it's important to me to be there in support and be ready if my name and number is called again."
Foles has thrown 16 touchdown passes and no interceptions with an NFL-leading 127.9 passer rating since replacing Vick.
Coach Chip Kelly has not directly addressed the starting quarterback situation but said of Foles: "We've won with Nick, and he's not turning the ball over. That's huge for us."
Kelly said Vick could return to practice fully next week after the Eagles' bye.
"I'm feeling good," Vick said. "I think I'm gradually getting better."
Foles threw for 298 yards in a 24-16 win over the Washington Redskins on Sunday and has thrown 199 passes without an interception.
The Eagles are 6-5 and in first place in the NFC East.
"I thought Nick went out and put on a great performance against the Redskins," Vick said. "He went out and did everything the coaches asked him to do, and that's what you want in a must-win game, and that's what the magnitude of that game was."
Vick, an 11-year veteran who has been to four Pro Bowls and taken his team to the playoffs four times, said he likes being a mentor for Foles.
"He had an opportunity to learn from me this year and last year and just sit behind me and pick my brain, and he also went out and played the game, and now he's just taking that and everything is unfolding for him," Vick said.