Through thick and thin
Meaning: in good times and bad times; If you support or stay with someone through thick and thin, you always support or stay with them in easy and difficult situations.
Example: He has always supported me through thick and thin. No matter what happens to my husband, I’ll stay with him through thick and thin.
Example: He has always supported me through thick and thin. No matter what happens to my husband, I’ll stay with him through thick and thin.