'Wool' in the Bible

All the first males to come to birth in your herd and your flock are to be holy to the Lord your God: the first birth of your ox is not to be used for work, the wool of your first lamb is not to be cut.

You are to give him the firstfruits of your grain, new wine, and oil, and the first sheared wool of your flock.

Do not wear clothes made of both wool and linen.