This song is reminder to myself to always Keep my eyes on Jesus!!!,, when the enemy comes and attacks me with past sins or worries about tomorrow. 
Paul wrote in Phil. 3:13,14 Brethren, I count myself not to have apprehended: but this one thing I do, forgetting those things which are behind, and reaching forth unto those things which are before, I press towards the mark for the prize of the high calling of God in Christ Jesus.

Lyrics

Today I'm gonna live for Jesus
Yesterday has come and gone
Tomorrow I could be in Heaven
Singin' a brand new song
I could be singin' with the angels
I could singin' Praise The Lord