What is the spiritual meaning of the pitch on Moses' ark?
The pitch that sealed Moses' ark is a picture of the atonement, because everything in the account points to the work of the cross. It looks forward to the time when Christ would become the Savior of mankind and bring in the true atonement.
Les explains that Moses' mother caulked or literally sealed the little ark with pitch, and this is again a picture of the atonement. He emphasizes that everything in this account is pointing to the work of the cross. Everything in the Old Testament is looking forward to the time when Christ would become the Savior of mankind and bring in the true atonement. Therefore, the pitch on Moses' ark serves as a symbolic preview of the atonement that Christ would accomplish.