'Rivulet' in the Bible

Thou hast inspected the earth, and waterest it, Thou makest it very rich, the rivulet of God is full of water, Thou preparest their corn, When thus Thou dost prepare it,

And hath been as a tree planted by waters, And by a rivulet he sendeth forth his roots, And he doth not see when heat cometh, And his leaf hath been green, And in a year of dearth he is not sorrowful, Nor doth he cease from making fruit.