Let's take a look.
1Kgs 3:2 Only the people sacrificed in high places, because there was no house built unto the name of the LORD, until those days.
1Kgs 3:3 And Solomon loved the LORD, walking in the statutes of David his father: EXCEPT he sacrificed and burnt incense in high places.
1Kgs 3:4 And the king went to Gibeon to sacrifice there; for that was the great high place: a thousand burnt offerings did Solomon offer upon that altar.
Nope He went to Gideon because there was a great high place and offered up a sacrifice; a thousand burnt offerings upon that alter to our GOD not some pagan god to satisfy his pagan wives.
Then In Gibeon the LORD appeared to Solomon in a dream by night: and God said, Ask what I shall give thee. 1Kgs 3:5
And at the tail end of the dream GOD said, "And if thou wilt walk in my ways, to keep my statutes and my commandments, as thy father David did walk, then I will lengthen thy days." 1Kgs 3:14
And Solomon awoke; and, behold, it was a dream. And he came to Jerusalem, and STOOD BEFORE THE ARK (NOT AT THE HIGH PLACE WHICH HE LEFT AT GIBEON) the ark of the covenant of the LORD, and offered up burnt offerings, and offered peace offerings, and made a feast to all his servants. 1Kgs 3:15
Walking in GOD's ways, keeping HIS statutes and HIS commandments, as his father David did walk
He did not do it thinking it wasn't ok.
1Kgs 3:3 And Solomon loved the LORD, walking in the statutes of David his father: EXCEPT he sacrificed and burnt incense in high places.
1Kgs 3:4 And the king went to Gibeon to sacrifice there; for that was the great high place: a thousand burnt offerings did Solomon offer upon that altar.
If it feels good do it. Do thine own Will? Welcome to the religion of subjectivity.
Solomen thought that there was no issue with ascribing to the pagan practice of sacrificing in high places to our GOD. His intentions were pure. HE DID NOT HAVE AN ISSUE AS PERTAINING TO HIS CONSCIENCE, but it is recorded as a short coming.... Solomon demonstrated his loyalty to the LORD by following the practices of his father David, EXCEPT that he offered sacrifices and burned incense on the high places.
(1Ki 3:3 NET)
The Day Easter was founded was due to prejudice and has pagan roots that date back thousands of years. If We would celebrate HIS Resurrection it should be done on the end of Passover week not tomorrow. That was when it happened. And that my friend is next Sunday.