John Gill Commentary 2 Chronicles 13:11

"and they burn unto Jehovah every morning and every evening burnt-offerings and sweet incense: the showbread also [set they] in order upon the pure table; and the candlestick of gold with the lamps thereof, to burn every evening: for we keep the charge of Jehovah our God; but ye have forsaken him." — 2 Chronicles 13:11 (ASV)

And they burn unto the Lord, every morning and every evening,
burnt sacrifices and sweet incense
That is, the priests; the one they did on the altar of burnt offering, and the other on the altar of incense, and both every day, morning and evening:

the shewbread also set they in order upon the pure table ;
the shewbread table, every sabbath day, when they took the old bread off, which had stood there a week:

and the candlestick of gold, with the lamps thereof, to burn every
evening ;
these were lighted every evening, and dressed every morning; and though there were ten tables and ten candlesticks in Solomon's temple, yet only one of each was used at a time; and therefore from hence it is not to be concluded that all the rest were taken away by Shishak:

for we keep the charge of the Lord our God ;
observe all the rites and ceremonies, laws, and ordinances enjoined by him; the Targum is, ``the charge of the Word of the Lord our God:''

but ye have forsaken him ;
his fear or worship, as the same paraphrase.