Analysis of Satan Returning

When Jesus claims the sinner's heart,
Where Satan ruled before;
The evil spirit must depart,
And dares return no more.

But when he goes without constraint,
And wanders from his home;
Although withdrawn, 'tis but a feint,
He means again to come.

Some outward change perhaps is seen
If Satan quit the place;
But though the house seem swept and clean,
'Tis destitute of grace.

Except the Saviour dwell and reign
Within the sinner's mind;
Satan, when he returns again,
Will easy entrance find.

With rage and malice sevenfold,
He then resumes his sway;
No more by checks to be controlled,
No more to go away.

The sinner's former state was bad,
But worse the latter far;
He lives possessed, and blind, and mad,
And dies in dark despair.

Lord save me from this dreadful end!
And from this heart of mine,
O drive and keep away the fiend
Who fears no voice but thine.