Matthew 6:24

The other [ε τ ε ρ ο ν]. Implying distinction in quality rather than numerical distinction [α λ λ ο ς]. For example, " whoever smiteth thee on thy right cheek, turn to him the other [τ η ν α λ λ η ν]; i e., the other one of the two (Matthew 5:39). At Pentecost, the disciples began to speak with other [ε τ ε ρ α ι ς] tongues; i e., different from their native tongues. Here the word gives the idea of two master of distinct or opposite character and interests, like God and Mammon.

Hold to [α ν θ ε ξ ε τ α ι]. The preposition ajnti, against, indicates holding to the one master as against the other. He who is for God must be against Mammon.