Bible versions divide some chapters and verses differently (called “versification”). PSA 49:21 is valid in the numbering listed below, but is outside the OET-RV / English numbering used for the ordinary parallel pages.
In Luth (Luther numbering), PSA 49:21 corresponds to OET-RV / English PSA 49:20.
In OET-LV (OET-LV numbering), PSA 49:21 corresponds to OET-RV / English PSA 49:20.
In BrLXX, BrTr (lxx numbering), PSA 49:21 corresponds to OET-RV / English PSA 50:21.
In JPS (org numbering), PSA 49:21 corresponds to OET-RV / English PSA 49:20.
In ClVg, DRA, Wycl (vul numbering), PSA 49:21 corresponds to OET-RV / English PSA 50:21.
This reference has more than one corresponding page. Follow the links above for the complete passage in the appropriate numbering.