1 Kings 18:1 - Wesley's Explanatory Notes

The third year — Either, From the time when he went to hide himself by the brook Cherith; six months before which time the famine might begin. And so this being towards the end of the third year, it makes up these three years and six months, James 5:17. Or, From the time of his going to Sarepta, which probably was a year after the famine begun; So this might be in the middle of the third year, which also makes up the three years and six months. Go to Ahab — To acquaint him with the cause of this judgment, and to advise him to remove it, and upon that condition to promise him rain. Will send — According to thy word and prayer, which thou shalt make for it. Thus God takes care to maintain the honour of his prophet, and in judgment remembers mercy to Israel, for the sake of the holy seed yet left among them, who suffered in this common calamity.