What an interlinear Bible is and how to read it
An interlinear Bible is a Bible that lets you see, beneath the translation, the words of the original language. You do not need to know Hebrew or Greek: it exists precisely so that anyone can look at what lies behind each phrase.
A translation and an interlinear are not the same
A translation says in good English what the original says. An interlinear shows, word by word, which original corresponds to each part of that translation.
Take the first verse of the Bible. In Hebrew it begins with בְּרֵאשִׁית (“in the beginning”), goes on with בָּרָא (“created”) and then אֱלֹהִים (Elohim). Our translation says: “In the beginning Elohim created the heavens and the earth” (Genesis 1:1), and beneath each phrase you will see the Hebrew word it translates.
There are words of the original that English does not need. In Genesis 1:1, before “the heavens” and before “the earth,” the Hebrew puts a particle, אֵת, which only marks who receives the action; it has no translation. And there are words that English needs and the original does not write: those we add so that the sentence can be understood, and we mark them, so that you know they are not in the text.
How to read ours
Open any chapter, for example Genesis 1. Each phrase in English carries beneath it, in small print, its word in Hebrew (in the New Testament it will be the Greek, as the word-by-word review advances).
Rest the pointer on a phrase, or tap it on the phone, and its card opens: the original word, how it is pronounced, what it means explained plainly, what it means in that verse and in what other places of the Bible it appears.
Hebrew is written from right to left; do not worry about that: the pronunciation appears written in our letters.
Each verse also has its own page, with all its words explained one by one. For example, Genesis 1:2.
What Strong's numbers are
In 1890 James Strong published a concordance that gave a number to each Hebrew and Greek word of the Bible. Since then those numbers have been used all over the world to identify a word without having to write it in its alphabet.
That is why each of our words carries its number: ruach, “spirit, wind, breath,” is H7307 (the H is for Hebrew; in Greek it is G). If you look up that number in any Bible dictionary, you will find the same word.
What it is for
It helps you not to depend on a single way of saying things. When you see that the same Hebrew word is translated “spirit” in one place and “wind” in another, you understand why, and you can go to the other verses where it appears and compare.
It also helps you study calmly: save words, read with someone and ask together what the text meant, before what it seems to us.