And the LORD gave them rest on every side just as he had sworn to their fathers. Not one of all their enemies had withstood them, for the LORD had given all their enemies into their hands. Not one word of all the good promises that the LORD had made to the house of Israel had failed; all came to pass. Joshua 21:44–45 (ESV)
God gave his people rest and fulfilled every one of his promises. This should fill us with hope and joy. If God had the power, desire and ability to actively bring his word to pass for the children of Israel entering the promised land, then we can have confidence that God will bring his promises to pass for us and has a rest for us to enter into as well.
There was a correlation between all the enemies being defeated and entering rest. Although we can have rest and peace in this life through Jesus Christ (John 14:27), we will enter into true rest in the promised land of Heaven (Hebrews 4:1-11), when the final enemy death will be defeated (1 Corinthians 15:26).
Examine yourselves, to see whether you are in the faith. Test yourselves. Or do you not realize this about yourselves, that Jesus Christ is in you?—unless indeed you fail to meet the test! 2 Corinthians 13:5 (ESV)
Paul challenges the Corinthians to examine themselves to confirm whether they are continuing in the faith in terms of both belief and conduct. Paul has mentioned elsewhere that the Corinthians themselves are the proof of his ministry, so he tells the corinthians to look at themselves, knowing that they are true fruit is the ultimate approval of Paul’s ministry.
We can learn from this that we need to examine ourselves to, not with self loathing and doubt but to affirm and encourage ourselves as we grow in the Lord. We are called to this type of self examination every time we observe communion too.
We should not be afraid to measure our obedience and belief against Gods word, if we fail to meet the test then we need to seek restoration. In some cases this self examination will prove we were never saved and need to submit to God’s word (for example those in cults).
But I will sing of your strength; I will sing aloud of your steadfast love in the morning. For you have been to me a fortress and a refuge in the day of my distress. Psalm 59:16 (ESV)
We can trust in our God of covenant keeping love, he will keep us and be a fortress and refuge in times of distress. We should sing of Gods love and protection for us