To make marinade: In medium mixing bowl, combine orange zest; lime zest; thyme; oil; garlic; salt; white pepper, to taste; orange juice; and soda.
Add chicken and completely coat with marinade. Cover bowl and place in refrigerator at least 1 hour.
Soak wooden skewers in water 20-30 minutes.
To make kebabs: Remove chicken from fridge and lace through each skewer using weaving motion. Repeat for all chicken tenders and set aside.
When skewers are prepared, drizzle extra marinade over chicken.
Heat grill to medium. Place chicken on grill. Cover and cook 3 minutes per side, or until center of meat reaches internal temperature of 170 F.
Remove from grill and serve immediately, or cover with foil and serve later.
Notes
Tips: Cover kebabs with foil for at least 20 minutes after cooking to trap in flavor and juices.Add vegetables to kebabs, if desired, to increase flavor.