William Burkitt on 1 John 3:24

Observe here, 1. The benefit of obedience to God's command. God dwelleth in us, and we in him. God's dwelling in us implies,

1. Right and property; what a man dwells in is his own.

2. Command and authority; the master and owner is the commander and disposer of the house.

It also, 3. Implies residence and continuance, settlement and fixedness of abode; there a man dwells where he constantly resides.

And our dwelling in God imports, 1. Reconciliation with God. Can two dwell together except they be agreed?

2. Affiance and trust in him.

3. An upholding constant communion with him; it is one thing to run to God for refuge in a storm, and another thing to make him our dwelling place at all times, and in all conditions; he that keepeth God's commandments thus dwelleth in God, and God in him; it follows, And hereby we know that he abideth in us, by the Spirit which he hath given us.

Learn hence, That the Spirit of God, bestowed upon us in his sanctifying gifts and saving graces, is an evident sign of God's dwelling in us, and we in him.