O Lord, thou knowest, etc. The prophet renews his complaints. God's omniscience is the thought which comforts him (comp. Jeremiah 17:6; Jeremiah 18:23; Psalms 69:19). But he desires some visible proof of God's continued care for his servant.
Visit me, equivalent to "be attentive to my wants "-an anthropomorphic expression for the operation of Providence. Take me not away in thy long-suffering; i.e. "suffer not my persecutors to destroy me through the long-suffering which thou displayest towards them."
"Take away," viz. my life (comp. Ezekiel 33:4, "If the sword come and take him away"). Rebuke; rather, reproach; cutup. Psalms 69:7 (Psalms 69:1-36. is in the style of Jeremiah, and, as Delitzsch remarks, suits his circumstances better than those of David).