Psalm 118:24
This is the day that the Lord has made;
let us rejoice and be glad in it.

2 Corinthians 6:2
for He says,
“At a favorable time I listened to you,
And on a day of salvation I helped you.” Behold, now is “a favorable time,” behold, now is “a day of salvation”—

Hebrews 4:7
“Today if you hear His voice,
Do not harden your hearts
In the mind of Christ, today is a crucial day. He has no promises for tomorrow, only today. The warning resounds in clear tones, and if I hear Him calling me today, I must not wait for a more convenient time.

This is the day the Lord has made. I must Heed His call, and then, I will rejoice in it.