'Warmth' in the Bible

When they told him everything that Joseph had said to them, and when he saw the wagons which Joseph had sent to carry him, the spirit of their father Jacob revived.

Again, if two lie down together, then they keep warm; but how can one be warm alone?

Immediately Judas went to Jesus and said, “Greetings (rejoice), Rabbi!” And he kissed Him [in a deliberate act of betrayal].

But now that Timothy has come back to us from [his visit with] you, and has brought us good news of your [steadfast] faith and [the warmth of your] love, and [reported] that you always think kindly of us and treasure your memories of us, longing to see us just as we long to see you,