'Spontaneous' in the Bible

the spontaneous growth of thy harvest thou dost not reap, and the grapes of thy separated thing thou dost not gather, a year of rest it is to the land.

A jubilee it is, the fiftieth year, a year it is to you; ye sow not, nor reap its spontaneous growth, nor gather its separated things;

And this to thee is the sign, Food of the year is the spontaneous growth, And in the second year the self-produced, And in the third year sow ye, and reap, And plant vineyards, and eat their fruits.

-- And this to thee is the sign, Food of the year is self-sown grain, And in the second year the spontaneous growth, And in the third year, sow ye and reap, And plant vineyards, and eat their fruit.

The angel said to her, “Do not be afraid, Mary, for you have found favor with God.