I have of mine own proper good = Seeing I have a treasure of mine own. Omit the word "which".
mine own proper good. Hebrew only one word, segullah = personal treasure. Occurs only in Exo_19:5. Deu_7:6; Deu_14:2; Deu_26:18. Deu_29:3. Psa_135:4. Ecc_2:8. Mal_3:17 (see margin).