Psalms 23:1
Yahweh is my shepherd: I shall lack nothing.
WEB
The LORD is my shepherd; I shall not want.
KJV
What Psalms 23:1 means
It means that because the Lord himself is the shepherd caring for the psalmist, he lacks nothing he truly needs.
David pictures God as a shepherd and himself as a sheep under that care. To lack nothing is not a promise of wealth or ease; it is the confidence that the One leading him already knows the way to food, water, and rest. The verse opens a psalm about being guided through both green pastures and the valley of shadow.