I was thinking the same thing. It's easy to check.
Trace your wires from the solenoid. There should be a heavy wire from the battery to the solenoid. There is also a heavy wire going from the solenoid to the starter. There should be one or more small wires going to the solenoid as well. The small wire is the signal. If you short from big wire to big wire you are bypassing the solenoid and the starter should turn over. You can also try shorting from the big wire from the battery to the post where the small wires attach. If your vehicle turns over when you do this then there is a problem with the signal and the solenoid is fine.
If neither of those things do anything you might have a bad battery or the wiring to the starter may be damaged or I guess it could also be the starter itself.
Good luck.
Thank you I appreciate the tips very much.