Verse explainer
Jesus isn't asking you to be poor — he's exposing a loyalty problem: money makes a demanding master, and divided allegiance isn't allegiance at all.
No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
BSBNo one can serve two masters: Either he will hate the one and love the other, or he will be devoted to the one and despise the other. You cannot serve both God and money.
The plain meaning
Jesus has just told his hearers to store up treasure in heaven rather than on earth (vv. 19-21), and declared that where your treasure is, your heart will be too (v. 21). Verse 24 is the logical conclusion: the heart can only have one ultimate master. The word "serve" here carries the full force of belonging to someone — the way a slave belongs to an owner, not the casual sense of doing a favor. Two masters with competing claims don't split your obedience; they reveal which one you actually belong to. "Mammon" is an Aramaic term for wealth or property, used here as if money were a rival deity with its own demands and its own claim on your loyalty. The verse isn't a command to poverty or a condemnation of having money; it's a diagnosis of the heart. You can use money. You cannot serve it. The test is which one you turn to first when the pressure is on.
The common misreading
What the commentators say
JFB stress that the verb "serve" means to belong wholly and be entirely under command to — not merely to assist or cooperate with. Even if two masters shared identical interests, a servant can take law from only one. Where the masters' interests conflict, as God's and money's plainly do, choosing one necessarily means disregarding the other. The impossibility isn't moral weakness; it's structural.
Gill reads the verse as the pivot that introduces the next passage on anxiety: since you cannot serve both God and mammon, you must not let money-worry master you either. Anxious, unbelieving fretting about material provision is itself a form of mammon-service — it treats God as though he were unable or unwilling to supply what he has already promised.
Henry observes that mammon is here personified as a rival lord with real claims and real devotees. The conflict isn't theoretical: covetousness in practice crowds out the duties owed to God — prayer, generosity, trust — just as surely as a slave's hours belong to whoever holds the title. No arrangement of divided loyalty is stable; one master will eventually win the heart entirely.
The word behind it
An Aramaic loanword meaning wealth or property, used here as a personified master. JFB note the most probable derivation gives it the sense of "what one trusts in" — which is exactly the point. Jesus isn't just saying money is distracting; he's saying it functions as a god when it becomes the thing you rely on, fear losing, and organize your life around. Calling it by name raises the stakes: this isn't a budget question, it's a worship question.
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