'Trains' in the Bible

The camel-trains go out of their way; they go up into the waste and come to destruction.

The camel-trains of Tema were searching with care, the bands of Sheba were waiting for them:

You will be full of camel-trains, even the young camels of Midian and Ephah; all from Sheba will come, with gold and spices, giving word of the great acts of the Lord.