True Christians do not closely or familiarly associate with those who hate Jesus Christ.
“If anyone does not love the Lord Jesus Christ, let him be accursed. The Lord comes!” (1 Corinthians 16:22)
“He that walketh with wise [men] shall be wise: but a companion of fools shall be destroyed” (Proverbs 13:20).
“Do not be led astray; bad companionships ruin good habits” (1 Corinthians 15:33).
“For Your mercy [is] before my eyes; and I have walked in Your truth. I have not sat with lying men; and I will not go in with hypocrites; I have hated the assembly of evildoers, and I will not sit with the wicked. I will wash my hands in innocency; so I will go around Your altar, O Jehovah, to cause to hear with the voice of thanksgiving and recount all Your wonderful works. O Jehovah, I have loved the place of Your house, and the place where Your glory dwells” (Psalm 26:3-8).
“A perverse heart shall depart from me; I will not know evil. [Whoever] secretly slanders his neighbor, I will cut him off; I will not endure him who has high eyes and a proud heart. My eyes [shall be] on the faithful of the land, so that they may dwell with me; he who walks in a perfect way shall serve me” (Psalm 101:4-6).
“Depart from me, O evildoers, for I will keep my God’s Commands” (Psalm 119:115).
“Do not let my heart turn aside to [any] evil thing, to practice deeds in wickedness with men who practice iniquity; and do not let me eat of their delicacies. Let the righteous strike me; [it is] a mercy; and he rebuking me, [it is] oil of the head, let not my head refuse [it]; for yet my prayer also [shall be] against their evils” (Psalm 141:4-5).
“Do not enter the path of the wicked, and do not go in the way of evildoers. Avoid it, do not pass by it; turn from it and pass on” (Proverbs 4:14-15).
“Make no friendship with an angry man; and with a furious man thou shalt not go: Lest thou learn his ways, and get a snare to thy soul” (Proverbs 22:24-25).
“But let not fornication, and all uncleanness, or greediness, be named among you, as is fitting for saints; also baseness, and foolish talking, or joking (the things not becoming), but rather thanksgiving” (Ephesians 5:3-4).
In contrast to the above, true Christians are to associate closely, worship, fellowship, and pray together.
“And they were continuing steadfastly in the doctrine of the apostles, and in fellowship, and in the breaking of bread, and in prayers” (Acts 2:42).
“And these Words which I am commanding you today shall be on your heart. And you shall teach them to your sons, and shall speak of them as you sit in your house, and as you walk in the way, and as you are lying down, and as you are rising up. And [you] shall bind them for a sign on your hand; and they shall be for frontlets between your eyes. And you shall write them on the doorposts of your house, and on your gates” (Deuteronomy 6:6-9).
“I [am] a companion of all who fear You; yea, of those who keep Your Precepts…Let those fearing You turn to me, and knowers of Your Testimonies” (Psalm 119:63, 79).
“Let not any filthy word go out of your mouth, but if any [is] good to building up [in respect to] the need, that it may give grace to the ones hearing” (Ephesians 4:29).
“speaking to yourselves in psalms and hymns and spiritual songs, singing and praising in your heart to the Lord, giving thanks at all times for all things in the name of our Lord Jesus Christ, even to God [the] Father” (Ephesians 5:19-20).
“But we should not weaken in doing good, for in due time we shall reap, if [we] do not faint. So then, as we have time, let us work good toward all, and especially toward the household of the faith” (Galatians 6:9-10).
“Therefore, encourage one another, and build up one another, as you indeed do” (1 Thessalonians 5:11).
“But exhort yourselves each day, as long as it is being called today, that not any of you be hardened by [the] deceit of sin” (Hebrews 3:13).
“And let us consider one another, to incitement of love and of good works, not forsaking the assembling together of ourselves, as [is the] custom of some, but exhorting, and by so much more as you see the Day drawing near” (Hebrews 10:24-25).
“We announce to you what we have seen, and [what] we have heard, that you also may have fellowship with us. And truly our fellowship [is] with the Father and with His Son, Jesus Christ” (1 John 1:3).
“Then those fearing Jehovah spoke together, [each] man to his neighbor. And Jehovah gave attention and heard. And a Book of Remembrance was written before Him for those who feared Jehovah, and for those esteeming His name. And they shall be Mine, says Jehovah of Hosts, for the day that I will make up [My] treasure. And I will pity them as a man has pity on his son who serves him. Then you shall again see the [difference] between the righteous and the wicked, between him who serves God and him who does not serve Him” (Malachi 3:16-18).
True Christians enjoy fellowship and worship of the Triune God of Scripture. He is central in their thoughts, conversations, and affections. Their priorities and concerns are all about glorifying God through Jesus Christ, their great High Priest (Hebrews 7:25-26). They are of like-mind in the essentials of the gospel of Jesus Christ and they do not engage in schismatic arguing over non-essential doctrines as do many God-haters (e.g., Calvinists vs. Arminians). The bread that they break (cf. Acts 2:24) and the cup that they drink is the true gospel symbolically, soberly, and solemnly set forth.
“For as often as you may eat this bread, and drink this cup, you solemnly proclaim the death of the Lord, until He shall come” (1 Corinthians 11:26).
They rejoice in Jesus Christ with trembling.
“Then whether you eat or drink, or whatever you do, do all things to the glory of God” (1 Corinthians 10:31).
And even in the “little things” of drinking tea or water, or of eating a meal. They pray that God would be glorified in the eating and the drinking, and that He would be pleased to bless the sustenance to their bodies for the sake of the Person and Work of Jesus Christ who became a curse for them that they might be blessed in Him (everyone that Jesus Christ became a curse on behalf of will, without any exception, receive the blessing of Abraham, the promise of the Holy Spirit. The Holy Spirit regenerating and causing Christ-glorifying faith that boasts SOLELY in the cross as an immediate and inevitable fruit of His regenerating/resurrecting work in the hearts of His elect people (2 Corinthians 4:3-6; Galatians 6:14).
“So that those of faith are blessed with the faithful Abraham. For as many as are out of works of Law, [these] are under a curse. For it has been written, Cursed [is] everyone who does not continue in all the things having been written in the book of the Law, to do them. And that no one is justified by Law before God [is] clear because, The just shall live by faith. But the Law is not of faith, but, The man doing these things shall live in them. Christ redeemed us from the curse of the Law, having become a curse for us; for it has been written, Cursed [is] everyone having been hung on a tree; that the blessing of Abraham might be to the nations in Christ Jesus, that we might receive the promise of the Spirit through faith” (Galatians 3:9-14).