As certain human needs are more pressing than others, so also certain issues in Christendom are weightier than others.
It is alarming that so many professing christians today, have relegated the essentials(issues that determine our eternal destiny) to the background and have rather opted for shadows(trivial and non-essentials).

RELIGION WITHOUT RIGHTEOUSNESS
When we talk about religion, we are talking about a form of worship, a kind of belief system.

Every professing Christian has a form of worship.
For some, it is praying and fasting, singing, taking the Lord's supper,reading and memorising the bible, kneeling down while praying, While for others it is; going on pilgrimage, sponsoring God's work, helping the needy and so on.
It is good, that we engage in some of these activities, but we must understand that these activities will not by themselves, qualify us for heaven.

Cornelius, had the fear of God - that's a form of worship, he gave alms - that's a form of worship(religion), he prayed to God always - that's also a form of worship(religion).[Acts10:1-2], but in God's sight he wasn't counted righteous. God had to send Peter to show him the pathway to righteousness.
Peter pointed Cornelius to Jesus.[Acts10:10-16,34-43].

Without admitting, repenting and confessing our sins and believing on the Lord Jesus, all our activities, good deeds, forms of worship(religion) will take us nowhere.
After giving our lives to Christ, we need to abide in Him(go along with Him and stick to Him)[John15:4].
We are also required to live a holy live afterwards[1Peter1:15].

PEDIGREE WITHOUT PERSONAL PURITY
The word 'PEDIGREE' means 'background', 'lineage' or 'ancestry'.
The Christian race is an personal race, it has got nothing to do with how spiritual our parents are or how committed our ancestors were.
If your Father is holy, thank God for him, What about you? Are you holy?. It is personal.

The Jews banked on the relationship their ancestor(Abraham) had with God, they thought that by virtue of that relationship they were covered.
They thought they could go on and on in their sins without retribution since they were children of Abraham[Rom2:17-24].

It is only personal purity, purity of heart, holiness(that starts from within and reflects outside) that qualifies us for heaven and not pedigree[Matt.5:8, Heb.12:14, Rom3:28-29]. Are your thoughts and imaginations pure? Do you know that we are not counted as sinners only because of our actions, but chiefly because of the kinds of thoughts we entertain[Pro.24:9].

After recieving Christ, you need to sincerely and persistently pray and ask God to sanctify you, so that you can be pure withtin.
You must make sure you play your part by not entertaining or habouring filthy thoughts.
Discard them as they come.

FANATICISM WITHOUT FAITHFULNESS
So many professing Christians go to any length in their bid to defend their faith, their denomination or their Leaders. Some even go as far as using abusive words on others to buttress their points(which is not right).

They are very zealous, when it comes to defending the Christian Faith and biblical doctrines(which is right, since we were commanded to do so in Jude1:3 and Titus1:13) but we must not forget that '...whosoever shall not recieve you, nor hear your words, when ye depart out of that house or city, shake of the dust of your feet'(Mtt10:14).
This is all we were commanded to do, we shouldn't go bitter or abusive.

On the other hand, there are some professing christians who defend the Faith, without being abusive.
They defend the Gospel zealously, but they are not saved themselves, they still live in sin, they don't have a personal relationship with the Lord Jesus.
'They profess that they know God, BUT IN WORKS they deny him, being abominable and disobedient...'[Titus1:16].
They have head-knowledge of the bible, they study the bible so as to win an argument, without applying what they read to their personal lives.

We shouldn't forget that it takes holiness(and not fanaticism) to make heaven. We shouldn't lose our salvation in the quest of trying to defend the Gospel.

For more info you can like:
www.facebook.com/holinessfromall