Coat of arms of the bishop John Walter Flesey, Auxiliary Bishop of Newark.
Blazon: Azure, a winged lion passant guardant, its forepaw on a book inscribed “Pax Tibi Marce, Evangelista Meus”, all or,  with a nimbus argent; in base a crescent or; on a chief gules, a dove descending argent with a tri-radiant nimbus or and gules.
Motto: “MY SPIRIT REJOICES”.
Reference:

rcan.org
Own work
SajoR