From the Treasury of Daily Prayer:

Good Friday is the high point of Holy Week, but not of the Church Year–for we know that after Good Friday a day is coming when death will give way to life. If the commemoration of Good Friday was separated from Easter, we would remain in our sins, and thus the ultimate word of Good Friday would be “you are condemned.” Even as we stand at the foot of the cross and contemplate the price of our sin, we gather as children reconciled to God. In the services of Good Friday, the Church does not leave us in the darkness and the shadow of death but rather fills us with the certainty of victory over sin, death, and the devil, pointing us to the final victory that will be celebrated on Easter.