The Bible itself is loaded with direction and command to care for ourselves. “Above all else, guard your heart for it is the wellspring of life,” (The Bible, Proverbs 4:23). This scripture states that ABOVE ALL ELSE, we must guard ourselves. We must guard, nourish, and care for our heart because it matters to Him. He believes it is so valuable that it should be guarded above everything else.
Therefore, knowing what our heart needs and how to protect it is essential in following this Scripture. The Bible also implies that we already care for ourselves. “Love your neighbor as yourself,” (Luke 10:27). God implies in this verse that we care for ourselves already. The second commandment is built on the foundational principle that we already care for ourselves. It is out of our own abundance that we should love others as we love ourselves.
Source: https://mycounselor.online/when-god-says-to-care-for-yourself/#:~:text=%E2%80%9CAbove%20all%20else%2C%20guard%20your,be%20guarded%20above%20everything%20else.