Jamieson, Fausset and Brown on Malachi 1:11

11. For--Since ye Jewish priests and people "despise My name" (Mal 1:6), I shall find others who will magnify it (Mt 3:9). Do not think I shall have no worshippers because I have not you; for from the east to the west My name shall be great among the Gentiles (Is 66:19, 20), those very peoples whom ye look down upon as abominable.

pure offering--not "the blind, the lame, and the sick," such as ye offer (Mal 1:8). "In every place," implies the catholicity of the Christian Church (Joh 4:21, 23; 1Ti 2:8). The "incense" is figurative of prayers (Psa 141:2; Re 8:3). "Sacrifice" is used metaphorically (Psa 51:17; He 13:10, 15, 16; 1Pe 2:5, 12). In this sense the reference to the Lord's Supper, maintained by many of the fathers, may be admitted; it, like prayer, is a spiritual offering, accepted through the literal offering of the "Lamb without blemish," once for all slain.