Numbers 7:3

7:3 They brought their offering before the Lord, six covered carts and twelve oxen – one cart for every two of the leaders, and an ox for each one; and they presented them in front of the tabernacle.

Numbers 9:15

The Leading of the Lord

9:15 On the day that the tabernacle was set up, the cloud covered the tabernacle – the tent of the testimony – and from evening until morning there was a fiery appearance over the tabernacle.