Canon 90 No kneeling from Saturday vespers to Sunday evening

We have received canonically from our God-bearing Fathers not to bend the knee on the Lord's days, honouring the resurrection of Christ. So then, that we may not be ignorant of the exactness of this observance, we make it plain to the faithful that after the evening entrance of those in holy orders to the altar on Saturday, according to the prevailing custom, no one is to bend the knee until the following evening, that of the Lord's day, at which, after the entrance at the lamp-lighting, we bend the knees again and so offer our prayers to the Lord. For, taking the night after Saturday as the forerunner of our Saviour's rising, we begin the hymns spiritually from then, bringing the feast out of darkness into light, so that from then, for a whole night and day, we keep the feast of the resurrection.