[Exodus 25:30] "...And you shall set the showbread on the table before Me always."
The showbread was baked and placed on the table in the Tabernacle as an offering to God. The cakes were to be left on the table for a week, and then be replaced with new ones on the Sabbath, so that there were always fresh loaves on the table, and those that had started going stale were removed.
This week, let us all examine our hearts and find something fresh to offer up to God. He deserves something better than the stale leftovers that we have held onto for too long!