Must - Vine's Expository Dictionary of New Testament Words


[ 1,,G1163, dei ]
an impersonal verb, signifying it is necessary" or "one must," "one ought," is found most frequently in the Gospels, Acts and the Apocalypse, and is used
(a) of a necessity lying in the nature of the case e.g., John 3:30; 2 Timothy 2:6;
(b) of necessity brought about by circumstances, e.g., Matthew 26:35, RV, "must," AV, "should;" John 4:4; Acts 27:21, "should;" 2 Corinthians 11:30; in the case of Christ, by reason of the Father's will, e.g., Luke 2:49; Luke 19:5;
(c) of necessity as to what is required that something may be brought about, e.g., Luke 12:12, "ought;" John 3:7; Acts 9:6; 1 Corinthians 11:19; Hebrews 9:26;
(d) of a necessity of law, duty, equity, e.g., Matthew 18:33, "shouldest;" Matthew 23:23, "ought;" Luke 15:32, "it was meet;" Acts 15:5, "it is needful" (RV); Romans 1:27, RV, "was due," AV, "was meet" (of a recompense due by the law of God); frequently requiring the rendering "ought," e.g., Romans 8:26; Romans 12:3; 1 Corinthians 8:2;
(e) of necessity arising from the determinate will and counsel of God, e.g., Matthew 17:10; Matthew 24:6; Matthew 26:54; 1 Corinthians 15:53, especially regarding the salvation of men through the death, resurrection and ascension of Christ, e.g., John 3:14; Acts 3:21; Acts 4:12. See BEHOVE, No. 2 (where See the differences in the meanings of synonymous words), MEET, NEED, NEEDFUL, OUGHT, SHOULD.

[ 2,,G3784, opheilo ]
"to owe," is rendered "must ... needs" in 1 Corinthians 5:10. See BEHOVE, No. 1.


(1) In Mark 14:49, AV, the conjunction hina with the subjunctive mood, "in order that," is represented by "must" (RV, "that ... might").

(2) In Hebrews 13:17, AV, the future participle of apodidomi, "to give," is translated "they that must give" (RV, "they that shall give").

(3) In 2 Peter 1:14, AV, the verb "to be," with apothesis, "a putting off," is translated "I must put off," RV, "(the) putting off ... cometh," lit., "is (swift)."

(4) Sometimes the infinitive mood of a verb, with or without the article, is necessarily rendered by a phrase involving the word "must," e.g., 1 Peter 4:17, AV, "must (begin);" or "should," Hebrews 4:6, RV, "should" (AV "must").

(5) Sometimes the subjunctive mood of a verb, used as a deliberative, is rendered "must," etc., John 6:28, "(what) must (we do)," RV (AV, "shall").

Vine's Expository Dictionary of New Testament Words