Complete- Matthew 5:48

Matthew 5:48:
You therefore must be perfect, as your heavenly Father is perfect.

perfect- Greek: teleios [link]
1) brought to its end, finished
2) wanting nothing necessary to completeness
3) perfect
4) that which is perfect
----A) consummate human integrity and virtue
----B) of men
------a) full grown, adult, of full age, mature

Mature: [link]
1. complete in natural growth or development, as plant and animal forms
2. ripe, as fruit, or fully aged, as cheese or wine.
3. fully developed in body or mind, as a person
4. pertaining to or characteristic of full development
5. completed, perfected, or elaborated in full by the mind

This is not about your actions. This is about you (more specifically Christ in you). Your actions will follow suit. You must ask yourself, were you saved from hell, or were you saved from sin, and consequently hell? This Gospel is much more... than we like to even believe, unfortunately.

Just a SMALL sample of scriptures that speak to this (in the Bible obviously).
Matthew 5:48, Romans 12:2, 1 Corinthians 2:6,
2 Corinthians 7:1, 2 Corinthians 13:11, Ephesians 4:12,
Philippians 3:15, Colossians 1:28, Colossians 3:14,
Colossians 4:12, 1 Thessalonians 3:10, 2 Timothy 3:17,
Hebrews 6:1, Hebrews 10:14, Hebrews 13:21, James 1:4,
1 Peter 5:10, 1 John 2:5, 1 John 4:12, 1 John 4:17

**Blurring your eyes may help you see the word "Perfect" better.**