God supplies the entrance

SMALL STRAWS IN A SOFT WIND by MARSHA BURNS:

When uncertainty seems to abound, it is more important than ever for you to be certain about what you believe.  Your relationship with Me, says the Lord, must be solid.  And, your efforts to make your calling and election sure is of utmost significance.  Put forth an earnest and strenuous attempt to establish yourself securely in My kingdom.  2 Peter 1:10-11 Therefore, brethren, be even more diligent to make your call and election sure, for if you do these things you will never stumble; for so an entrance will be supplied to you abundantly into the everlasting kingdom of our Lord and Savior Jesus Christ.