Eight people emerged from the ark. Christ was resurrected on the first day of the week, i.e., the eighth day of the old week (see note John 20:11b); thus, the number eight signifies resurrection. Since all the believers, the components of the church, were included in Christ’s resurrection (Eph. 2:6; 1 Pet. 1:3), they are the resurrected people. Hence, the living of Noah and his family after the flood signifies the living of the church in Christ’s resurrection. This is a seed of the church life.
Eight persons were in the ark when it passed through the flood and when it came to rest on the mountain. Thus, whatever the ark experienced, they also experienced by being in the ark. This illustrates how the believers, by being in Christ (1 Cor. 1:30; Eph. 1:4), were crucified with Christ (Rom. 6:6; 2 Cor. 5:14; Gal. 2:20a) and also resurrected with Christ (Eph. 2:6; Col. 2:12; 3:1). Because we are in Christ, His experience has become ours.