Cheyq (H2436) denotes the bosom, lap, or chest — the intimate space of embrace. It is used for the closeness of a nursing mother, a husband's embrace, and most profoundly, the divine bosom. John 1:18 finds its Hebrew background here: the Son is in the bosom (kolpos/cheyq) of the Father.
The cheyq is the geography of intimacy. Moses pleads with God: 'Carry them in your bosom as a nurse carries an infant' (Num 11:12). The Psalms describe enemies being repaid 'into their bosom' (Ps 79:12). Most movingly, Lazarus rests in Abraham's bosom (Lk 16:22-23) — a picture of covenant rest. Behind all these images stands the eternal intimacy: the Son who is 'in the bosom of the Father' (Jn 1:18) has made the Father known. The closest place to God is where He calls us.