Thunder and rain. God could give Israel no more impressive evidence than rain in the time of wheat harvest (May or June; see pp. 108, 110). Rain then would be startling. In Palestine the spring rain normally ceases before Passover time, and the dry season sets in immediately. Rain comes again in the autumn, preceding the planting of wheat and barley.
That ye may perceive. They were to perceive two things: (1) that they had sinned before the Lord in demanding a king, and (2) that God loved them and would never forsake them. That day they added another memorial to the many evidences already theirs, that the returning prodigal was more than welcome in the Father’s house.