C. F. Keil and Franz Delitzsch on Leviticus 25:11-12

Lev 25:11-12

The other effect of the fiftieth year proclaimed with the trumpet-blast consisted in the fact that the Israelites were not to sow or reap, just as in the sabbatical year (see Lev 25:4, Lev 25:5). “For it is יובל,” i.e., not “jubilation or time of jubilation,” but “the time or year of the trumpet-blast, it shall be holy to you,” i.e., a sabbatical time, which is to be holy to you like the day of the trumpet-blast (Lev 25:23, Lev 25:24).