יַחֵ֥ל יִשְׂרָאֵ֗ל אֶל־יְה֫וָה כִּֽי־עִם־יְהוָ֥ה הַחֶ֑סֶד וְהַרְבֵּ֖ה עִמּ֣וֹ פְדֽוּת׃
이스라엘아 여호와를 바랄지어다 여호와께는 인자하심과 풍성한 구속이 있음이라
Rashbam
The words איש כי ידור נדר, refer to a person vowing to bring a voluntary sacrifice, just as the words או השבע שבועה mean that he phrases this vow in a negative manner. When the Torah adds that such a person must not יחל his word, the meaning is that he must not be late in fulfilling his vow else he is considered as having broken his promise, i.e. delay carrying out his word, his promise. He has only until (according to one view) the next pilgrimage festival to come to Jerusalem and make good on his vow. Seeing that at that time he must come to Jerusalem at any event, this does not impose any kind of hardship on him. The expression יחל in the sense of delaying, procrastinating, occurs several times in Scripture, for instance in Judges 3,25 ויחל עד בוש, “he waited an embarrassingly long time.” Or, in Genesis 8,10 ויחל עוד שבעת ימים, we read that Noach waited another seven days before sending out the dove again. In Psalms 130,7 David speaks of יחל ישראל אל ה', meaning that Israel is to continue to wait for G’d hopefully. Anyone translating the words לא יחל דברו as “he must not profane, dishonour his word,” as the plain meaning of the verse is in error.
Rashbam
(1) IMPOSING AN OBLIGATION ON HIMSELF ... HE SHALL NOT BREAK HIS PLEDGE. This refers to the votive offering. In other words, he must not delay his votive offering until after the festivals, as the Holy One, blessed be He, commanded. For this is the explanation of "he shall not break [lo yahel]," as in (Jud. 3:25) "He waited [actually, "They waited"] a long time"; (Gen. 8:10) "He waited another seven days"; (Ps. 130:7) "O Israel, wait for the LORD" -- wait and anticipate Him. And one who explains [this] as an expression of desecration [hilul] according to the straightforward sense is in error.
Chizkuni
לא יחל דברו, “he must not delay fulfillment of his words indefinitely.”Alternately, he must not profane his own solemn undertaking by not honouring it.” We find this expression used in this sense in Psalms 130,7: 'יחל ישראל אל ה, “keep faithfully waiting, o Israel for Hashem fulfilling His undertakings” where the Psalmist has G-d urging Israel to wait patiently for G-d to honour His vows. G-d can be depended on to fulfill His vows or oaths. The party failing to fulfill his vow must not profane himself by doing so. However, others, i.e. a legal court have the power to release him from the obligations he imposed himself at a time of personal stress, not realising all the implications of what he had said at that time. (Talmud tractate Chagigah, folio 10).