Pg. 131. In Yeung’s summary, we see a lot that is important to think about.
The Greeks viewed man as soul + body. Not so the Jews. They viewed man as a single entity. That meant that if a man was not ok, physically, then there was an issue with his relationship to God. Why? This was bec. God was the ultimate author of sickness itself. It did not just happen. As such, God had to provide the healing.
There were two possible situations here: 1) A man was a sinner and hence there was a need for gracious forgiveness. 2) A man was innocent (e.g. Job) and yet still was afflicted with some infirmity, and in this case was saved by the Lord’s intervention upon prayer and such.
In (2) we see both healing and salvation, with healing referring to recovery, and salvation as a change of state.
σῴζω over time began to refer to both healing and salvation.
This means that the phrase ἡ πίστις σου σέσωκέν σε ought to understood as referring to holistic salvation, not just simply physical healing.