There isn't such a thing as a Bluetooth jack. Bluetooth is wireless so there isn't anything to connect.
Without the make and model numbers we can't give you a specific answer.
If the TV doesn't have any audio outputs there is no way to connect a soundbar.
If the TV has an audio out (optical digital, line level analog, or headphone out) and the soundbar doesn't have a compatible input you will need some kind of converter or bluetooth transmitter.