Happy Easter!

It's Sunday today!

The first Christians neither lived nor thought in terms of a [church] year; they lived in terms of a week and they thought of the work of redemption in terms of a week. In this way concentration on the cross and the resurrection was even more marked than it has ever since succeeded in being. Where the Early Church made a new beginning from the point of view of the calendar was the keeping of Sunday, the first day of the week, the day following the Sabbath. Sunday was a day of gladness, because Christ rose at dawn on that day, the first working day of the Jewish week (Mark 16.1 f.). Every week the earliest Christian congregations met for an Easter festival. Continually, with the interval of only a few days, Easter returned anew

[...but,] in the faith of the Early Church the resurrection is linked with the cross and with death. Therefore the suffering of Christ was given a place in the weekday and the Christian community early in its history came to regard Wednesday and Friday as two 'station days' in his suffering. Wednesday was the day of the betrayal, Friday the day of the death. Accordingly, the Didache and Hermas (beginning of the second century) speak of the keeping of these two days. In this way the whole week is devoted to Christ's death and resurrection. Station days are the feast of the cross, Sunday is the feast of the resurrection. On station days the rule was to bow down and bend the knee, on Sunday to stand up and look towards heaven, in free and erect position, singing praise.

pp. 192-193, The Living Word, Gustaf Wingren)

If weekdays are work in the world for most Christians, and Sunday is when we gather together and rest, then that I think that says something about the posture we ought to have as we engage with the world and do our work - i.e. it should be self-sacrificial.