John Gill Commentary John 5:9

"And straightway the man was made whole, and took up his bed and walked. Now it was the sabbath on that day." — John 5:9 (ASV)

And immediately the man was made whole
As soon as ever the words were spoken by Christ, such power went with them, as restored the man to perfect health; and he finding himself to be quite well, rose up directly:

and took up his bed and walked ;
which may be expressive of a sinner's rising from the bed of sin, and taking up the cross, or carrying the body of sin and death with him; and walking by faith in Christ, as he has received him:

and on the same day was the sabbath ;
which is remarked, for the sake of what follows.