For since I spoke, I cried out, I cried violence and {e} spoil; because the word of the LORD was made a reproach to me, and a derision, daily.

(e) He shows that he did his office in that he reproved the people of their vices and threatened them with God's judgments: but because he was derided and persecuted for this, he was discouraged, and would have stopped preaching, except that God's spirit forced him to it.

Wesley's Notes

20:8 Since - Since I first began to be a prophet, I have faithfully discharged my office, and that with warmth and zeal. Spoil - I have prophesied that violence and spoil was coming. Because - Because of that scorn and derision with which they treated him.

Jamieson-Fausset-Brown Bible Commentary

8. Rather, "Whenever I speak, I cry out. Concerning violence and spoil, I (am compelled to) cry out," that is, complain [Maurer]. English Version in the last clause is more graphic, "I cried violence and spoil" (Jer 6:7)! I could not speak in a calm tone; their desperate wickedness compelled me to "cry out."

because-rather, "therefore," the apodosis of the previous sentence; because in discharging my prophetic functions, I not merely spake, but cried; and cried, violence . ; therefore the word of the Lord was made a reproach to me (Jer 20:7).

Matthew Henry's Concise Commentary

20:7-13 The prophet complains of the insult and injury he experienced. But ver. 7 may be read, Thou hast persuaded me, and I was persuaded. Thou wast stronger than I; and didst overpower me by the influence of thy Spirit upon me. So long as we see ourselves in the way of God, and of duty, it is weakness and folly, when we meet with difficulties and discouragements, to wish we had never set out in it. The prophet found the grace of God mighty in him to keep him to his business, notwithstanding the temptation he was in to throw it up. Whatever injuries are done to us, we must leave them to that God to whom vengeance belongs, and who has said, I will repay. So full was he of the comfort of God's presence, the Divine protection he was under, and the Divine promise he had to depend upon, that he stirred up himself and others to give God the glory. Let the people of God open their cause before Him, and he will enable them to see deliverance.