EX-23.1 10 dex231.txt CONSENT OF ERNST Exhibit 23.1 Consent of Independent Auditors We consent to the reference to our firm under the caption "Experts" and to the incorporation by reference of our report dated March 1, 2002 in Amendment No. 2 to the Registration Statement (Form S-3 No. 333-85488) and related Prospectus of John Hancock Life Insurance Company for the registration of $3,000,000,000 of its SignatureNotes. /s/ Ernst & Young LLP Boston, Massachusetts June 11, 2002