The olive family has over four hundred species in the world. Many of them grow in Africa, India, and Australia, but it is the one in the Bible, the European Olive Olea europaea, that has become famous. It is likely that the olive was domesticated in Egypt or the eastern Mediterranean basin in the third millennium B.C. The botanist Newberry argued that Egypt was its original home. We know from the Bible that olives grew in the hills of Samaria and in the foothills. There is a wild variety, called Olea europaea sylvestris, that is smaller than the domestic one; it produces a smaller fruit with less oil. The Apostle Paul refers to this wild variety in Romans 11:17 and 11:24. Olives are easily propagated by cuttings and by grafting fruitful species into less fruitful ones. They grow best on hillsides where the rain drains off quickly. The fruit forms by August but does not ripen until December or January.

The olive is not a big tree, reaching up to perhaps 10 meters (33 feet), but with pruning it is usually kept to around 5 meters (17 feet) tall. The leaves are grayish green above, and whitish underneath. The bark of young trees is silvery gray but gets darker and rougher as the tree ages. The trunk also gets twisted and hollow and may reach over a meter in thickness. Olives grow for hundreds of years, and some in Israel have possibly reached two thousand years.

The fruit of the olive is about 2 centimeters (1 inch) long and a bit more than a centimeter (1/2 inch) thick. It has a hard stone inside and a soft skin that covers the oily flesh. Today a mature tree may yield 10-20 kilograms (22-44 pounds) of fruit, which, when processed, will yield 1.3-2.6 kilograms (3.6 pounds) of oil.

For the Jews the “big three” trees were the vine, the fig, and the olive. People ate olive fruits, but more importantly, they squeezed the oil from the fruits, and used it for cooking, for lamps, for rubbing on the body, for medicine, and in religion. Jacob poured olive oil on the stone where he saw a vision of angels, declaring it a holy place (Genesis 28:18). Moses, similarly, anointed the Tabernacle and its equipment with olive oil mixed with sweet-smelling resins (Exodus 40:9). Aaron and the priests who served in the Tabernacle were also anointed (Exodus 29:21).

Some types of wild olive grow in Africa, India, and Australia, but are not well-known. The so-called “African olive” produces a black, oil-bearing fruit much like an olive. It is common as a snack in northern Nigeria. The “Chinese olive” is also a species of Canarium and may be a possible cultural substitute, if it produces edible fruit and oil. The “Russian olive” grown in dry regions of the world is a member of the Elaeagnus family and not a true olive. A variety of olive (Olea cuspidate) is used for building in India and Nepal, but it is probably not possible to use it in the Bible except perhaps in a study Bible where you could say that the biblical olive was related to this tree.

Since most of the kinds of olive trees in the world do not have edible fruit, it may not be possible to substitute a local variety. If it is done, however, a footnote would be required saying that the Palestinian kind produced edible fruit and oil. If a variety of Canarium is eaten in your area, you could use the local name for it. Otherwise transliterate from a major language.

Source: Each According to its Kind: Plants and Trees in the Bible (UBS Helps for Translators)