בַּחֹ֣דֶשׁ הָרִאשׁ֗וֹן בְּאַרְבָּעָ֥ה עָשָׂ֛ר לַחֹ֖דֶשׁ בֵּ֣ין הָעַרְבָּ֑יִם פֶּ֖סַח לַיהוָֽה׃
In the first month, on the fourteenth day of the month at dusk, is the LORD’S passover.
Read kabbalistic (mystical) interpretation of Leviticus 23:5: and classical mystical sources.