The New Moon Is The Full Moon. The moon was made on the fourth day of creation. The moon rules the night and is for signs and seasons.

Genesis 1:14:”And God said, Let there be lights in the firmament of the heaven to divide the day from the night;
and let them be for signs, and for seasons, and for days, and years:”
verse 15: “And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so.”
verse 16: “And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: he made the stars also.”
verse 17: “And God set them in the firmament of the heaven to give light upon the earth,”
verse 18: “And to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good.”
verse 19: “And the evening and the morning were the fourth day.”

The Feasts of the Lord are seasonal, kept according to the new moon (except the Sabbath).

Leviticus 23: 1: “And the LORD spake unto Moses, saying,”
verse 2: “Speak unto the children of Israel, and say unto them, Concerning the feasts of the LORD, which ye shall proclaim to be holy convocations, even these are my feasts.”
verse 3: “Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the LORD in all your dwellings.”
verse 4: “These are the feasts of the LORD, even holy convocations, which ye shall proclaim in their seasons.”

Apocrypha Ecclesiasticus 43: 6 : “He made the moon also to serve in her season for a declaration of times, and a sign of the world.”
verse 7: “From the moon is the sign of feasts, a light that decreaseth in her perfection.”
verse 8: “The month is called after her name, increasing wonderfully in her changing, being an instrument of the armies above, shining in the firmament of heaven;”
verse 9: “The beauty of heaven, the glory of the stars, an ornament giving light in the highest places of the Lord.”

Israel had a dinner for the New moon and sacrificed unto the Lord.

1 Samuel 20:24: “So David hid himself in the field: and when the new moon was come, the king sat him down to eat meat.”
verse 25: “And the king sat upon his seat, as at other times, even upon a seat by the wall: and Jonathan arose, and Abner sat by Saul’s side, and David’s place was empty.”
verse 26: “Nevertheless Saul spake not any thing that day: for he thought, Something hath befallen him, he is not clean; surely he is not clean.”
verse 27: “And it came to pass on the morrow, which was the second day of the month, that David’s place was empty: and Saul said unto Jonathan his son, Wherefore cometh not the son of Jesse to meat, neither yesterday, nor to day?”
verse 28: “And Jonathan answered Saul, David earnestly asked leave of me to go to Bethlehem:”
verse 29: “And he said, Let me go, I pray thee; for our family hath a sacrifice in the city; and my brother, he hath commanded me to be there: and now, if I have found favour in thine eyes, let me get away, I pray thee, and see my brethren. Therefore he cometh not unto the king’s table.”

The entire world will honor the new moon law, a sign for the feasts to be kept.

Isaiah 66:23: “And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD.”

There Was An Eclipse On Passover When Christ Was Crucified.

Matthews 27:45: Now from the sixth hour there was darkness over all the land unto the ninth hour.

Passover always comes on the 14th at evening (which is the 15th). A solar eclipse ONLY occurs during the DARK phase of the moon (misnomer as NEW MOON)

Remember Passover always falls on the 15th of the first Lunar month. Here are two calendars, one beginning with the Full moon (LIGHT)

And one beginning with the DARK phase of the moon (misnomer new moon)

Since a solar eclipse ONLY occurs during the DARK phase of the moon (misnomered new moon)

Matthew 27:45: Now from the sixth hour there was darkness over all the land unto the ninth hour.

THIS PROVES THE FULL MOON IS THE BEGINNING OF THE MONTH COUNT 15 DAYS TO PASSOVER AND THE DARK PHASE OF THE MOON OCCURS. HENCE A SOLAR ECLIPSE OCCURRED.

The Bible Reproves Astronomy Which Teaches The New Moon Begins Dark Then Increases To Full Light Then Decreases To Dark Again