But a spring rose out the earth, watering all the surface of the earth.

But a mist went up from the earth, and moistened the whole surface of the ground.

But a mist went up from the earth, watering all the face of the land.

But a fountain ascended from the earth, irrigating the entire surface of the land.

Sed vapot ascendebat e terra, et irrigabat universam superficiem terrae.

As in the former narrative, so here, the remaining part of the chapter is employed in recording the removal of the two hinderances to vegetation. The first of these is removed by the institution of the natural process by which rain is produced. The atmosphere had been adjusted so far as to admit of some light. But even on the third day a dense mass of clouds still shut out the heavenly bodies from view. But on the creation of plants the Lord God caused it to rain on the land. This is described in the verse before us. "A mist went up from the land." It had been ascending from the steaming, reeking land ever since the waters retired into the hollows. The briny moisture which could not promote vegetation is dried up. And now he causes the accumulated masses of cloud to burst forth and dissolve themselves in copious showers. Thus, "the mist watered the whole face of the soil." The face of the sky is thereby cleared, and on the following day the sun shone forth in all his cloudless splendor and fostering warmth.
On the fourth day, then, a second process of nature commenced. The bud began to swell, the tender blade to peep forth and assume its tint of green, the gentle breeze to agitate the full-sized plants, the first seeds to be shaken off and wafted to their resting-place, the first root to strike into the ground, and the first shoot to rise towards the sky.
This enables us to determine with some degree of probability the Season of the year when the creation took place. If we look to the ripe fruit on the first trees we presume that the season is autumn. The scattering of the seeds, the falling of the rains, and the need of a cultivator intimated in the text, point to the same period. In a genial climate the process of vegetation has its beginnings at the falling of the early rains. Man would be naturally led to gather the abundant fruit which fell from the trees, and thus, even unwittingly provide a store for the unbearing period of the year. It is probable, moreover, that he was formed in a region where vegetation was little interrupted by the coldest season of the year. This would be most favorable to the preservation of life in his state of primeval inexperience.
These presumptions are in harmony with the numeration of the months at the deluge Genesis 7:11, and with the outgoing and the turn of the year at autumn Exodus 23:16; Exodus 34:22.

There went up a mist - This passage appears to have greatly embarrassed many commentators. The plain meaning seems to be this, that the aqueous vapours, ascending from the earth, and becoming condensed in the colder regions of the atmosphere, fell back upon the earth in the form of dews, and by this means an equal portion of moisture was distributed to the roots of plants, etc. As Moses had said, Genesis 2:5, that the Lord had not caused it to rain upon the earth, he probably designed to teach us, in Genesis 2:6, how rain is produced, viz., by the condensation of the aqueous vapors, which are generally through the heat of the sun and other causes raised to a considerable height in the atmosphere, where, meeting with cold air, the watery particles which were before so small and light that they could float in the air, becoming condensed, i.e., many drops being driven into one, become too heavy to be any longer suspended, and then, through their own gravity, fall down in the form which we term rain.

But there went up a mist from the earth,.... After the waters had been drained off from it, and it was warmed by the body of light and heat created on the first day, which caused a vapour, which went up as a mist, and descended:
and watered the whole face of the ground; or earth, and so supplied the place of rain, until that was given: though rather the words may be rendered disjunctively, "or there went up" (g); that is, before a mist went up, when as yet there was none; not so much as a mist to water the earth, and plants and herbs were made to grow; and so Saadiah reads them negatively, "nor did a mist go up"; there were no vapours exhaled to form clouds, and produce rain, and yet the whole earth on the third day was covered with plants and herbs; and this is approved of by Kimchi and Ben Melech.
(g) "aut vapor ascendens", Junius & Tremellius.