C. F. Keil and Franz Delitzsch on 1 Kings 17:18

1Ki 17:18

The pious woman discerned in this death a punishment from God for her sin, and supposed that it had been drawn towards her by the presence of the man of God, so that she said to Elijah, “What have we to do with one another (מה־לּי ולך; cf. Jdg 11:12; 2Sa 16:10), thou man of God? Hast thou come to me to bring my sin to remembrance (with God), and to kill my son?” In this half-heathenish belief there spoke at the same time a mind susceptible to divine truth and conscious of its sin, to which the Lord could not refuse His aid. Like the blindness in the case of the man born blind mentioned in John 9, the death of this widow’s son was not sent as a punishment for particular sins, but was intended as a medium for the manifestation of the works of God in her (Joh 9:3), in order that she might learn that the Lord was not merely the God of the Jews, but the God of the Gentiles also (Rom 3:29).