This is the day that the Lord has made; let us rejoice and be glad in it Psalm 118:24
We may not always remember what day of the week, what month of the year or even what year it is while we are filling out our check in the grocery store. But whether we remember the date, today will always be the Lord’s day. We can long for the past or wish for the future but in quiet rejoicing there is rest. 
When we are struggling some people tell us that “Today is the first day of the rest of your life.” in an effort to encourage us to go on. But another reality is that yesterday was the last day of the past of your life. That past victory or defeat now sits far beyond our control but our today belongs to Jesus Christ. Yielding moment by moment to Jesus will allow us to experience a joy that comes only at His side!
For thus said the Lord God, the Holy One of Israel,
“In returning and rest you shall be saved;
in quietness and in trust shall be your strength.”
But you were unwilling Isaiah 30:14