συμφέρωsymphérō

to bear together (contribute), i.e. (literally) to collect, or (figuratively) to conduce; especially (neuter participle as a noun) advantage

Greek (New Testament) · G4851

Meanings

1. transitive to bring together: with accusative of thing, Acts 19:19.

2. Intrans., and mostly impers., συμφέρει, it is expedient, profitable or an advantage: 1 Corinthians 6:12, 1 Corinthians 10:23, 2 Corinthians 8:10; with infinitive, Matthew 19:10, John 18:14; with dative, followed by ἵνα (Bl., § 69, 5), Matthew 5:29-30, Matthew 18:6, John 11:50, John 16:7. Ptcp., ςυμφέρων, profitable: 1 Corinthians 12:7; plural, Acts 20:20; , 2 Corinthians 12:1; as as a noun, τὸ σ., profit, Hebrews 12:10.

Appears 17 times in the Bible.

Matthew 5:29 So if your eye—even your good eye—causes you to lust, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell.
Matthew 5:30 And if your hand—even your stronger hand—causes you to sin, cut it off and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell.
Matthew 18:6 But if you cause one of these little ones who trusts in me to fall into sin, it would be better for you to have a large millstone tied around your neck and be drowned in the depths of the sea.
Matthew 19:10 Jesus’ disciples then said to him, “If this is the case, it is better not to marry!”
John 11:50 You don’t realize that it’s better for you that one man should die for the people than for the whole nation to be destroyed.”
John 16:7 But in fact, it is best for you that I go away, because if I don’t, the Advocate won’t come. If I do go away, then I will send him to you.

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Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.