a channel of flowing liquid: a branch of water split off from a larger river to carry and distribute it.
This word names a watercourse that has been split off from a bigger river to lead water somewhere it would not otherwise reach. The clearest picture is an irrigation channel: a small, branching ditch that an orchard keeper digs from a river so the water flows where the trees need it. That is why one proverb can compare a king's heart to such a channel in God's hand, since a person can open or close a hand-dug channel and send the water wherever they wish, something no wild river allows.
Notice that the heart of the word is the channel itself, not the water. The Bible can speak of a channel running with oil from a rock, or with tears, just as easily as with water. The most common pairing simply adds the word for "water" (streams of water), but that pairing is a habit, not a rule built into the word. The picture is always the flowing course that carries and divides whatever is poured into it.
From there the word does rich work in poetry.
- It pictures the tree of the godly person planted beside steady channels of water, never running dry.
- It pictures branches of a river gladdening the city of God, and a heaven-fed channel that God keeps full to water the earth.
- And it pictures the restored future as parched land suddenly running with streams.
In each case the same idea carries the image: a course cut to bring life-giving flow where it is needed.