Because praise and worship pleases God all believers must spend quality time in praising and worshiping God:
John 4:23-24 - But the hour cometh, and now is, when the true worshippers shall worship the Father in spirit and in truth: for the Father seeketh such to worship him.
God is a Spirit: and they that worship him must worship him in spirit and in truth.
Jesus has given us the great commission to “Go Ye“ into the entire world and win the lost and make disciples of them:
Mark 16:15-16 - And he said unto them, Go ye into all the world, and preach the gospel to every creature. He that believeth and is baptized shall be saved; but he that believeth not shall be damned.
Matthew 28:19-20 - Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world.
It is required of Saints that we live holy and sanctified lives:
II Corinthians 7:1 - Having therefore these promises, dearly beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.
1 Thessalonians 4:4 - That every one of you should know how to possess his vessel in sanctification and honour.
We have been given an inheritance which was paid for by the Lord Jesus Christ. We are to claim that inheritance and walk in the fullness of it:
Colossians 1:12 - Giving thanks unto the Father, which hath made us meet to be partakers of the inheritance of the saints in light:
II Peter 1:3&4 - According as his divine power hath given unto us all things that pertain unto life and godliness, through the knowledge of him that hath called us to glory and virtue: