You observe days, and months, and times, and years.
All Commentaries on Galatians 4:10 Go To Galatians 4
Gaius Marius Victorinus
AD 400
So that he may be seen to say this to Jews and about Jews—that is, to the Galatians, who combine the Jews’ way of life with theirs—he adds, “You observe days and months and seasons and years.” … For it is one thing to observe days, as for example to rest on the sabbath, another to observe months, as for example to observe new moons, … another to observe years, another again [to observe] seasons such as fasting, the Passover, the feast of unleavened bread and other things of this kind. –.