Cross reference
Luke 12:55
55 and when -- a south wind blowing, ye say, that there will be heat, and it is;
Job 37:17
17 How thy garments `are' warm, In the quieting of the earth from the south?
Matthew 20:12
12 that These, the last, wrought one hour, and thou didst make them equal to us, who were bearing the burden of the day -- and the heat.