Adam Clarke on Matthew 12:21

And in his name shall the Gentiles trust - Ελπιουσι, they shall hope. Jesus Christ is the sole hope and trust of mankind; to trust and hope in his name, Jesus, is to expect salvation and all things necessary from him alone, to despise, comparatively, all earthly promises, to esteem, love, and desire heavenly things only, and to bear with patience and tranquillity all the losses and evils of this life, upon the prospect and hope of that felicity which he has purchased for us.