Psalms 68:19 - Coke's Commentary on the Holy Bible

Who daily loadeth us— Who bears our burdens every day. The verb עמס amas, rendered loadeth, signifies both to take on one's self, or carry a burden, and to place a burden on another; and hence it is used figuratively for to bear and carry another with tenderness and affection. In this sense it is applied to God himself, to express the constant care that he had taken of his people, and how he had supported them, and taken, as it were, upon himself the burden of their affairs. See Isaiah 46:3.Deuteronomy 1:31.