Psalm 1/Notes/Lexical.v. 3.228951
From Psalms: Layer by Layer
The phrase water channels (פַּלְגֵי מָיִם) probably refers to "artificial water channels."[1] "Unlike trees growing wild in wadis or planted in the fields, where the amount of rainfall varies, the tree the psalmist envisions has been planted purposefully by irrigation canals, artificial water-channels made for the purpose of irrigation (cf. Prov 21:1; Eccl 2:5-6; Isa 30:25)."[2] The common translation "streams of water" mistakenly implies a naturally occurring water source.