John Gill

For I am poor and needy,.... As he was in human nature, being born of poor parents, brought up in a mean manner, had not where to lay his head, and was ministered to by others; though he was Lord of all, and immensely rich in the perfections of his nature, and in his vast empire and dominion, and the revenues arising from thence; see Co2 8:9. It may here chiefly respect his helpless and forlorn estate as man, at the time of his sufferings and death; see Psa 40:17. And my heart is wounded within me; with the sins of his people on him, with a sense of divine wrath, and when under divine desertions, especially when his soul was exceeding sorrowful, even unto death, Mat 26:38.